PATIENT SAFETY IN FAMILY MEDICINE THROUGH THE EYES OF PEOPLE WITH CHRONIC CONDITIONS IN SLOVENIA VARNOST BOLNIKOV V DRUŽINSKI MEDICINI – POGLED BOLNIKA Staša GRABAR 1,2* , Zalika KLEMENC-KETIŠ 1,3,4 1University of Maribor, Faculty of Medicine, Department of Family Medicine, Taborska ulica 8, 2000 Maribor, Slovenia 2Community Health Centre Murska Sobota, Grajska ulica 24, 9000 Murska Sobota, Slovenia 3University of Ljubljana, Faculty of Medicine, Department of Family Medicine, Poljanski nasip 58, 1000 Ljubljana, Slovenia 4 Community Health Centre Ljubljana, Metelkova ulica 9, 1000 Ljubljana, Slovenia Received: Oct 17, 2025 Accepted: Apr 14, 2026 Original scientific article *Correspondence: stasa.vodicka@gmail.com Published under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/ © 2026 The Authors 10.2478/sjph-2026-0012 94 Grabar S, Klemenc-Ketiš Z. Patient safety in family medicine through the eyes of people with chronic conditions in Slovenia. Zdr Varst. 2026;65(2):94-103. doi: 10.2478/sjph-2026-0012. Grabar S, Klemenc-Ketiš Z. Patient safety in family medicine through the eyes of people with chronic conditions in Slovenia. Slovenian Journal of Public Health. 2026;65(2):94-103. doi: 10.2478/sjph-2026-0012. ABSTRACT Keywords: Patient safety Family medicine Primary care Polypharmacy Communication PaRIS Slovenia IZVLEČEK Ključne besede: varnost bolnikov družinska medicina primarno zdravstveno varstvo polifarmacija komunikacija PaRIS Slovenija Introduction Patient safety is a key dimension of healthcare quality, although most research has focused on hospital settings. This study analysed patient-reported experiences related to safety in Slovenian family medicine using data from the OECD PaRIS survey. Methods A cross-sectional study was conducted in 2023 among 70 family medicine practices in Slovenia. Data were collected using two validated questionnaires: the PaRIS Primary Care Patient Questionnaire (PaRIS-PQ) and the Primary Care Practice Questionnaire (PaRIS-PCPQ). Items Q69–Q75 of the PaRIS-PQ were analysed to assess experiences related to the use of medicines, medication review, repetition of information, adverse events, encouragement to express concerns, and barriers to care. Descriptive statistics, chi-square tests, correlation analysis, and binary logistic regression were used in data analysis. Results Respondents with chronic conditions totalled 2,133 (mean age 63.1 ± 10.9 years; 62.7% female). Polypharmacy (≥ 3 medications) occurred in 27% of respondents; only 19.7% had received a medication review in the previous 12 months. Seventeen percent reported experiencing at least one adverse event. Significant predictors of reported adverse events included repeated requests for personal medical information (p < 0.001), lack of encouragement to express concerns (p = 0.008), and transport barriers to accessing care (p = 0.024). The regression model explained a small proportion of the variance (Nagelkerke R² = 0.02). Conclusions Patient safety in Slovenian family medicine shows both strengths and areas requiring improvement. Communication processes, access barriers, and coordination of information appear to play an important role in perceived safety. Strengthening medication review practices and improving digital interoperability across healthcare settings may contribute to safer care in family medicine. Patient-reported measures such as PaRIS provide valuable insights for monitoring and improving patient safety in family medicine. Uvod Varnost bolnikov je ključna razsežnost kakovosti zdravstvene oskrbe, vendar se je večina dosedanjih raziskav osredotočala predvsem na bolnišnično okolje. Ta raziskava analizira izkušnje bolnikov, povezane z varnostjo v slovenski družinski medicini, na podlagi podatkov raziskave OECD PaRIS. Metode Leta 2023 je bila izvedena presečna raziskava v 70 ambulantah družinske medicine v Sloveniji. Podatki so bili zbrani z dvema validiranima vprašalnikoma: PaRIS vprašalnikom za bolnike v primarnem zdravstvu (PaRIS-PQ) in vprašalnikom za ambulante primarnega zdravstva (PaRIS-PCPQ). Za analizo so bila uporabljena vprašanja Q69–Q75 iz vprašalnika PaRIS-PQ, ki obravnavajo uporabo zdravil, pregled terapije, ponavljanje zdravstvenih informacij, neželene dogodke, spodbujanje bolnikov k izražanju skrbi ter ovire pri dostopu do zdravstvene oskrbe. Podatki so bili analizirani z deskriptivno statistiko, hi-kvadrat testom, korelacijsko analizo in binarno logistično regresijo. Rezultati V raziskavo je bilo vključenih 2133 pacientov s kroničnimi boleznimi (povprečna starost 63,1 ± 10,9 let; 62,7 % žensk). Polifarmacija (≥ 3 zdravila) je bila prisotna pri 27 % anketirancev, medtem ko je le 19,7 % bolnikov poročalo o opravljenem pregledu terapije v zadnjih 12 mesecih. Sedemnajst odstotkov bolnikov je poročalo o vsaj enem neželenem dogodku. Pomembni napovedniki poročanih neželenih dogodkov so bili ponavljajoče zahteve po posredovanju osebnih zdravstvenih informacij (p < 0,001), pomanjkanje spodbujanja bolnikov k izražanju skrbi (p = 0,008) ter transportne ovire pri dostopu do zdravstvene oskrbe (p = 0,024). Regresijski model je pojasnil majhen delež variance (Nagelkerke R² = 0,02). Zaključki Varnost bolnikov v slovenski družinski medicini kaže tako prednosti kot tudi področja, ki zahtevajo izboljšave. Komunikacijski procesi, ovire pri dostopu do zdravstvene oskrbe ter usklajevanje informacij imajo pomembno vlogo pri zaznani varnosti. Krepitev sistematičnega pregleda terapije in izboljšanje digitalne interoperabilnosti med zdravstvenimi sistemi bi lahko prispevala k večji varnosti v primarnem zdravstvu. Bolnikom poročani kazalniki, kot je raziskava PaRIS, ponujajo pomemben vpogled v spremljanje in izboljševanje kakovosti in varnosti v družinski medicini. 1 INTRODUCTION Patient safety is widely recognised as a core component of healthcare quality and an essential dimension of effective health systems. Although patient-safety research has historically focused on hospitals, evidence shows that primary care also faces important safety challenges, including delayed diagnoses, communication failures, incomplete medication reviews, and barriers to access. Despite its central role in health systems, patient safety in primary care remains less extensively studied than safety in hospital settings (1, 2). According to the World Health Organization (WHO), about 10% of patients globally experience healthcare errors (3). In primary care, risks arise from missed diagnoses, prescribing errors, communication failures, and limited access to services (3–6). The WHO’s Safer Primary Care manual highlights that safety in these settings requires a distinct approach from hospitals (3). Diagnostic errors are leading hazards in family medicine (6, 7). Prescribing errors also pose substantial risks; although digital tools reduce serious medication mistakes by over 50%, prescribing remains a key source of harm (8, 9). Preventable drug-related adverse events occur in about 3% of patients, with one-quarter causing serious harm (10). Globally, medical errors lead to millions of preventable injuries each year (11–13). The landmark To Err Is Human report estimated 44,000–98,000 US deaths annually from medical errors (14), sparking the modern safety movement (15, 16). In primary care, safety is hindered by fragmented information systems and rising workloads (17–19). Physician burnout increases the risk of errors (20), while vulnerable populations—particularly older adults and people with chronic conditions—face higher exposure (21, 22). In Slovenia, research shows a positive association between safety climate and outcomes, although regional and institutional variation persists (23, 24). Tools such as the Safety Attitudes Questionnaire (SAQ-SF) (25) and the Medical Office Survey on Patient Safety Culture (MOSPSC) have been used. A recent study reported an overall safety culture score of 59.6%, with strong domains in information exchange (93.5%) and organisational learning (90.2%), but weaknesses in work pressure (10.7%) and leadership support (27.1%) (26). In recent years, patient-reported outcome measures (PROMs) and patient-reported experience measures (PREMs) have gained importance as complementary indicators of healthcare quality and safety (27). The OECD Patient- Reported Indicator Surveys (PaRIS) programme provides a unique opportunity to assess the experiences and outcomes of care from the perspective of people with chronic conditions across countries (23, 30–32). To our knowledge, patient-reported safety indicators from the PaRIS survey have not yet been analysed in Slovenia using this approach. 95 The aim of this study was therefore to examine patient- reported safety indicators in Slovenian family medicine among people with chronic conditions, with particular attention to medication burden, medication review, communication and information continuity, and barriers to care. The study also explored predictors of reported adverse events in order to identify areas for improvement in the safety of family medicine practice. 2 METHODS 2.1 Study design and setting This cross-sectional study was part of the international Patient-Reported Indicator Surveys (PaRIS) programme, coordinated by the Organization for Economic Co-operation and Development (OECD) (23). The Slovenian part of the study was conducted in 2023 at 70 randomly selected family medicine practices, representing various geographic and demographic areas (28–30). The OECD developed the overall PaRIS survey design and conceptual framework in consultation with several international collaborators, including the Netherlands Institute for Health Services Research (NIVEL), Ipsos MORI, the University of Exeter, the Avedis Donabedian Institute, and OptiMedis AG (23). 2.2 Participants 2.2.1 Providers All active family medicine practices in Slovenia (N = 978) were eligible for inclusion according to the national register kept by the Health Insurance Institute of Slovenia. Practices that provided care exclusively to children or to institutionalised patients only were excluded. Participation was voluntary and unincentivised. 2.2.2 Patients Eligible participants were community-dwelling adults aged 45 years or older with at least one chronic condition and at least one contact with their family physician in the previous 6 months, including face-to-face, telephone, or online contact. People with severe cognitive impairment, terminal illness, or other disabling conditions preventing participation were excluded. For each participating practice with electronic medical records, a random list of 300 eligible patients was generated. 2.3 Instruments Two validated OECD PaRIS instruments were used. At the practice level, the Primary Care Practice Questionnaire (PaRIS-PCPQ) was administered. The full instrument contains 40 items covering organisational characteristics, workforce composition, care coordination, chronic care management, and the use of electronic health information systems (31). For the purposes of this analysis, the following PCPQ items were used: 10.2478/sjph-2026-0012 96 10.2478/sjph-2026-0012 (1) practice location, (2) practice type, (3) electronic exchange of patient information with external providers, (4) review of indicators of patient care, and (5) routine development of patient care plans for groups of patients. At the patient level, the Primary Care Patient Questionnaire (PaRIS-PQ) was used. The full instrument comprises 121 items addressing sociodemographic characteristics, health behaviours, health status, patient-reported outcomes, and patient experiences of care (32). In the present study, 7 patient-safety-related items from the PaRIS-PQ (Q69–Q75) were analysed, covering: • number of medications taken regularly, • medication review in the previous 12 months, • repetition of medical information, • reported adverse events, • whether respondents were encouraged to express concerns, • foregoing care due to transport difficulties, and • foregoing care due to medical costs. Both instruments were translated into Slovenian and culturally adapted using the TRAP-D process (Translation, Review, Adjudication, Pretesting, and Documentation) to ensure linguistic accuracy and conceptual equivalence (29). 2.4 Data collection and protection Data collection took place from April to June 2023. Participation was voluntary and anonymous. The study adhered to the General Data Protection Regulation (EU) 2016/679. All responses were anonymised before analysis, and no personally identifiable data were collected or stored. 2.4.1 Providers Participating providers received detailed instructions, consent forms, and unique identification codes to maintain confidentiality and to link provider- and patient-level data. Questionnaires were administered electronically or on paper, depending on participant preference. 2.4.2 Patients Participants received clear information about the study’s purpose, a consent form, and a unique identification code to protect their privacy and to link their responses anonymously to their healthcare provider. Participants could complete the questionnaire either electronically or on paper, depending on their preference. Invitations used a multimodal approach: via email, SMS or postal mail. Non-respondents received a total of two reminders within a three-week period. 2.5 Variables The primary outcome variable was reported adverse events derived from PaRIS-PQ item Q72. This item asked respondents how often they had experienced harmful or adverse events related to their care. For regression analysis, this variable was dichotomised into the presence of adverse events versus no adverse events, as specified below. Independent variables at the patient level included: • number of regularly taken medications, • medication review within the previous 12 months, • repetition of medical information to healthcare providers, • lack of encouragement for respondents to express their concerns, • barriers to care due to transport difficulties, and • barriers to care due to medical costs. • At the provider level, independent variables included: • practice location (urban/rural), • practice type (public/private concession practice), and • electronic exchange of patient information with external healthcare providers. 2.6 Statistical analysis Descriptive statistics were used to summarise provider- and patient-level characteristics, including frequencies, percentages, means, and standard deviations, as appropriate. Associations between categorical variables were examined using chi-square tests, and associations between ordinal patient-safety indicators were assessed using Spearman’s rank correlation coefficients. The primary outcome for multivariable analysis was reported adverse events (Q72). For binary logistic regression, responses were dichotomised as follows: respondents reporting adverse events “always”, “often”, or “sometimes” were classified as having experienced an adverse event, whereas those responding “rarely” or “never” were classified as not having experienced an adverse event. Responses marked as “not suitable for me” or missing were excluded from the regression model. Binary logistic regression was used to identify predictors of reported adverse events. Independent variables included the number of regularly taken medications, medication review within the previous 12 months, repetition of medical information, lack of encouragement for respondents to express concerns, barriers to care due to transport difficulties, and barriers to care due to medical costs. Results are presented as regression coefficients (B), standard errors (SE), Wald chi-square statistics, p-values, odds ratios (ORs), and 95% confidence intervals (CIs). 97 10.2478/sjph-2026-0012 Because respondents were clustered within practices, a multilevel mixed-effects logistic regression model with a random intercept for practice was applied in accordance with OECD PaRIS analytic procedures. Model fit was assessed using the model chi-square statistic and Nagelkerke R². Statistical significance was set at p < 0.05. Analyses were performed in SPSS version 31. 2.7 Ethical considerations The study was conducted in accordance with the principles of the Declaration of Helsinki and approved by the National Medical Ethics Committee of the Republic of Slovenia (No. 0120-260/2021/3). All participants provided informed consent before inclusion in the study. 3 RESULTS 3.1 Demographic characteristics of the participants 3.1.1 Providers Seventy family medicine practices with at least one registered person with a chronic condition took part in the study. Table 1 presents the distribution of provider-level characteristics among participating family medicine practices. 3.1.2 Patients Overall, 2,133 respondents with at least one chronic condition returned the questionnaire, representing 64.6% of all respondents in the Slovenian PaRIS sample. Table 2 presents the distribution of patient-level demographic, socioeconomic, and lifestyle characteristics among respondents with chronic conditions who participated in the study. Practice location Type of practice Electronic exchange of patient information Review of indicators of patient care Routine development of patient care plans for groups of patients Sex Female Male Age (years) categories 45–54 55–74 75 + Higher education Yes No Employment Yes No Income Low Medium High Living place Urban Rural Living with other people Yes No Description N (number of practices) N (number of practices) % % Variables Variables Urban Rural Public Private Yes No Yes No Yes No 49 21 60 10 38 32 44 26 37 33 1268 754 505 1355 271 1247 774 886 1133 758 597 403 1094 923 1402 515 70.0 30.0 85.7 14.3 54.3 45.7 62.9 37.1 53.6 46.4 62.7 37.3 23.7 63.6 12.7 61.7 38.3 43.9 56.1 43.1 34.0 22.9 54.2 45.8 73.1 26.9 Characteristics of providers. Characteristics of patients. Table 1. Table 2. 3.2 Patient safety indicators Table 3 summarises the responses from respondents regarding patient safety indicators, including the pattern of medication use, medication review by healthcare professionals, communication safety, adverse events, encouragement of respondents to express concerns, and access barriers such as transport and cost. Cross-tabulation analyses showed statistically significant associations between medication burden and several patient safety indicators. Respondents taking a higher number of medications were more likely to report having had a medication review, to report repeating their medical information, and to report adverse events. They were also more likely to report barriers to care related to transport and costs (all p < 0.001). These findings suggest that respondents with a greater medication burden may also face greater safety-related vulnerability. 98 10.2478/sjph-2026-0012 Number of medications regularly taken Medication review in the last 12 months Repetition of medical information Frequency of adverse events Encouragement to express concerns Foregoing care due to transport difficulties Foregoing care due to medical costs Repetition Adverse events Encouragement Transport barriers Cost barriers No medication 1-2 3-4 5-9 ≥ 10 Total Category Repetition Adverse events Encouragement Transport barriers Cost barriers Medication review: Yes (N, %) Medication review: No (N, %) Not sure (N, %) Total (N) N (number of practices) %Indicator Variable Number of medications Does not take any medicine 1-2 3-4 5-9 10 or more Yes No I’m not sure Yes, definitely Yes, to some extent Neither Not at all I’m not sure Always Often Sometimes Rarely Never Not applicable Always Often Sometimes Rarely Never Not applicable Always Often Sometimes Rarely Never Not applicable Always Often Sometimes Rarely Never Not applicable 1.00 0.16 -0.05 0.09 0.11 0.16 1.00 -0.08 0.12 0.15 -0.05 -0.08 1.0 -0.04 -0.03 0.09 0.12 -0.04 1.00 0.22 0.11 0.15 -0.03 0.22 1.00 NA 277 (31.2%) 240 (39.9%) 119 (46.3%) 14 (43.8%) 650 (36.6%) NA 554 (62.2%) 306 (50.8%) 120 (46.7%) 11 (34.4%) 991 (55.8%) NA 56 (6.6%) 54 (9.0%) 18 (7.0%) 7 (21.9%) 135 (7.6%) 282 890 602 257 33 1776 282 890 602 257 33 650 991 135 155 246 849 1439 295 22 157 380 721 1596 101 7 95 299 457 1967 147 3 33 103 230 1695 96 91 123 313 400 1700 337 8.5 27.0 18.2 7.8 1.0 19.7 30.0 4.1 4.7 7.4 25.7 43.6 8.9 0.7 4.8 11.5 21.8 48.3 3.1 0.2 2.9 9.1 13.8 59.6 4.5 0.1 1.0 3.1 7.0 75.9 2.9 2.8 3.7 9.5 12.1 51.5 10.1 Distribution of responses to patient safety indicators. Spearman’s rank correlations between patient safety indicators. Cross-tabulation of polypharmacy and medication review, NA – not applicable. Table 3. Table 5. Table 4. 99 10.2478/sjph-2026-0012 Spearman’s correlation analyses showed that repetition of medical information was positively associated with reported adverse events (r_s = 0.16, p < 0.001). Transport barriers (r_s = 0.12, p < 0.001) and cost barriers (r_s = 0.15, p < 0.001) were also positively associated with adverse events. Encouragement to express concerns was negatively associated with adverse events (r_s = –0.08, p = 0.004). Although these associations were statistically significant, their magnitude was weak and should therefore be interpreted with caution (Table 5). A multivariable logistic regression analysis was conducted to identify predictors of reported adverse events. The overall regression model was statistically significant (χ²(6) = 24.8, p < 0.001), although the proportion of explained variance was low (Nagelkerke R² = 0.02) (Table 6). Among the examined predictors, repetition of medical information was significantly associated with a higher likelihood of reporting adverse events (B = 0.42, SE = 0.17, Wald χ² = 6.13, p < 0.001). Respondents who reported frequently having to repeat their medical information had approximately 1.53 times higher odds of reporting adverse events compared with those who did not (OR = 1.53, 95% CI 1.20–1.95). Similarly, lack of encouragement to express concerns was associated with increased odds of adverse events (B = 0.76, SE = 0.47, Wald χ² = 2.65, p = 0.008). Respondents who reported less encouragement to express concerns had 2.14 times higher odds of reporting adverse events (OR = 2.14, 95% CI 1.14–4.03). Transport barriers to care were also a significant predictor (B = 0.32, SE = 0.21, Wald χ² = 2.26, p = 0.024), indicating that respondents facing transportation difficulties had slightly higher odds of reporting adverse events (OR = 1.10, 95% CI 1.02–1.95). In contrast, the number of medications, medication review within the previous 12 months, and cost-related barriers to care were not statistically significant predictors in the adjusted model (all p > 0.05). For example, the number of medications taken regularly showed no significant association with adverse events (B = –0.28, SE = 0.34, p = 0.492; OR = 0.75, 95% CI 0.34–1.62). 4 DISCUSSION This study examined patient-reported safety indicators in Slovenian family medicine using OECD PaRIS data from people with chronic conditions. The findings point to several relevant safety challenges, particularly in medication-related care, information continuity, patient communication, and access to care. However, the strongest adjusted associations with reported adverse events were observed for repetition of medical information, lack of encouragement for respondents to express their concerns, and transport barriers, whereas medication burden itself was not a significant predictor after adjustment. 4.1 Medication safety and polypharmacy Medication-related safety remains a key concern in primary care, especially among people with chronic conditions and multimorbidity. In our study, a substantial proportion of respondents reported regular medication use, yet only a minority reported having undergone a medication review within the previous 12 months. This finding suggests potential gaps in systematic medication monitoring in family medicine. Polypharmacy is widely recognised as an important risk factor for adverse drug events, hospitalisations, and inappropriate prescribing, particularly in older populations. Numerous studies have shown that increasing medication burden is associated with a higher risk of medication- related harm (1–2, 4, 10). However, in the present study polypharmacy was not significantly associated with reported adverse events in the adjusted regression model. This suggests that medication burden alone may not fully explain safety outcomes in this dataset. Instead, the relationship between polypharmacy and patient safety may be mediated by other factors, such as the quality of medication review, care coordination, and patient-provider communication. These findings are consistent with previous research suggesting that medication-related safety risks often arise not only from the number of medications but also from system-level factors such as inadequate medication reconciliation and fragmented care processes (6, 18–19). Number of medications / Polypharmacy Medication review Repetition of information Encouragement to express concerns Transport barriers Cost barriers B (SE) Wald χ² p-value OR 95% CIPredictor -0.28 (0.34) -0.27 (0.30) 0.42 (0.17) 0.76 (0.47) 0.32 (0.21) -0.07 (0.05) 0.69 0.83 6.13 2.65 2.26 1.66 0.492 0.406 < 0.001 0.008 0.024 0.097 0.75 0.76 1.53 2.14 1.1 0.93 0.34-1.62 0.42-1.36 1.20-1.95 1.14-4.03 1.02-1.95 0.86-1.99 Logistic regression analysis of predictors of adverse events. Legend: SE– standard error; OR – odds ratio; C.I – confidence interval Table 6. 100 10.2478/sjph-2026-0012 4.2 Communication and information continuity One of the strongest predictors of reported adverse events in this study was the need for respondents to repeat medical information that should already be available in the medical record. This finding likely reflects fragmentation of health information systems and limited interoperability between providers. When patient information is not consistently accessible across care settings, the risk of communication errors, duplicated tests, and inappropriate treatment decisions may increase. Similarly, respondents who reported less encouragement to express their concerns had higher odds of reporting adverse events. This finding highlights the importance of patient engagement and open communication in maintaining safe care processes. Previous studies have shown that when people feel comfortable voicing concerns and participating in decision-making, healthcare teams are more likely to detect potential safety issues early and prevent harm (27, 33-34). Despite this, a large proportion of respondents reported that they were rarely or never encouraged to express concerns during consultations. This finding suggests that patient empowerment and shared decision-making may still represent an underdeveloped aspect of patient safety culture in primary care. 4.3 Access barriers and patient safety Transport barriers were also associated with a higher likelihood of reporting adverse events. Although Slovenia has a largely publicly funded healthcare system, physical access to care may still represent an important determinant of patient safety, particularly for older adults and people with multimorbidity. Barriers to transport may lead to delayed consultations, missed follow-up appointments, and reduced continuity of care, all of which may increase the risk of adverse outcomes. By contrast, cost-related barriers were not statistically significant predictors in the adjusted model, suggesting that in the Slovenian context physical accessibility may play a more important role than financial barriers in shaping patient safety experiences. 4.4 Interpretation of patient-reported adverse events Approximately one in six respondents reported experiencing an adverse event at least occasionally. These results should be interpreted cautiously, as the survey item captures patient-reported experiences rather than clinically validated safety incidents. Patient-reported safety indicators provide valuable insight into perceived problems in care processes, but they may reflect a broader range of experiences than formally documented medical errors. Nevertheless, respondent perspectives are increasingly recognised as an important component of safety monitoring, particularly in primary care where many safety events remain undocumented in clinical reporting systems (27, 33-34). 4.5 Model performance and interpretation The regression model explained only a small proportion of the variance in reported adverse events (Nagelkerke R² = 0.02). Although this value appears low, such findings are common in studies examining complex social and behavioural phenomena such as patient safety in primary care. Safety outcomes are influenced by multiple interacting determinants at the patient, provider, organisational, and health-system levels, many of which were not captured in the present analysis. Similarly, the correlations observed between safety indicators were generally weak. This pattern suggests that patient safety incidents in primary care are multifactorial and cannot be explained by individual indicators alone. Even so, identifying statistically significant predictors can still provide useful insights into areas where improvements in care processes may reduce safety risks. 4.6 Strengths and limitations This study has several strengths. It uses data from the OECD PaRIS programme, applies internationally developed and culturally adapted instruments, and includes a large national sample of Slovenian people with chronic conditions in family medicine. The study also has important limitations. First, the cross- sectional design does not allow causal inference. Second, all patient-level data were self-reported, meaning that the adverse events captured in this study reflect respondent’ perceptions and experiences rather than clinically validated safety incidents. Third, the dichotomisation of the adverse-event item may have reduced nuance by combining different frequencies of reported events into a binary outcome. Fourth, the observed correlations were weak, and the regression model explained only a small proportion of the variance, indicating limited predictive power. Fifth, participation was voluntary, which raises the possibility of non-response bias, including possible overrepresentation of more engaged practices or respondents with higher health literacy. These factors may limit generalisability. 4.7 Implications for practice Despite these limitations, the findings point to several actionable areas for improvement. First, medication review should be strengthened in routine family medicine care, especially for people with multimorbidity and higher medication burden. Second, digital interoperability and 101 10.2478/sjph-2026-0012 information continuity should be improved to reduce the need for respondents to repeat medical information across providers. Third, communication practices should more consistently support people in expressing concerns, as this may contribute to safer and more person-centred care. Finally, access barriers—particularly transport-related barriers—should be considered within national patient- safety strategies, because safe care depends not only on clinical decisions but also on people’s ability to reach and navigate services. Regular medication review, better digital information exchange, and incorporation of patient-reported experience and outcome measures into routine quality monitoring may represent feasible system-level steps toward improving patient safety in Slovenian family medicine. 5 CONCLUSION Patient safety in Slovenian family medicine is shaped by multiple interacting factors. In this study, repetition of medical information, limited encouragement for respondents to express their concerns, and transport barriers were associated with higher odds of reported adverse events. Although medication burden was linked to several safety-related indicators in unadjusted analyses, it was not independently associated with adverse events after adjustment. These findings suggest that patient safety in primary care should be understood not only in terms of clinical complexity, but also in terms of communication quality, continuity of information, and access to care. Strengthening routine medication review, improving digital interoperability, and supporting people’s voice within consultations may help improve safety in family medicine. OECD PaRIS data provide a valuable patient-centred perspective that can inform future quality improvement and national patient-safety policy in Slovenia. ACKNOWLEDGEMENTS The authors sincerely thank all participating family medicine practices and respondents for their valuable cooperation. The study was carried out as part of the international OECD PaRIS (Patient-Reported Indicator Surveys) programme. CONFLICTS OF INTEREST The authors declare that they have no conflicts of interest. FUNDING This project “Assessment of experiences and outcomes of healthcare for people with chronic non-communicable diseases in family medicine in Slovenia” was financially supported by the Slovenian Research Agency and the Ministry of Health of the Republic of Slovenia (Research project No. V3-2102). ETHICAL APPROVAL The study was approved by the National Medical Ethics Committee of the Republic of Slovenia (No. 0120- 260/2021/3) and conducted in accordance with the principles of the Declaration of Helsinki. All participants provided written informed consent prior to participation. INFORMED CONSENT Informed consent was obtained from all individual participants included in the study. DATA AVAILABILITY STATEMENT The data analysed in this study originate from the OECD Patient-Reported Indicator Surveys (PaRIS). Due to data protection regulations and the terms of the data use agreement with the OECD, the dataset is not publicly available. Access to the data may be granted upon reasonable request and with permission from the data owner. AI USAGE STATEMENT During the preparation of this article the author(s) used the GPT language model to: • review and amend grammatical and spelling mistakes, • ensure linguistic consistency and coherence, • test and fine-tune the article’s wording, • format the references. After using this model, the author(s) reviewed and edited the content as needed and take full responsibility for the content of the publication. PREPRINT STATEMENT No preprint has been deposited. AUTHOR CONTRIBUTIONS Staša Grabar contributed to the conceptualisation, statistical analysis, interpretation of results, and drafting of the manuscript. Zalika Klemenc Ketiš contributed to the study design, data collection, supervision, interpretation of results, and critical revision of the manuscript. Both authors read and approved the final version of the manuscript. ORCID Staša Grabar: https://orcid.org/0000-0001-6317-8971 Zalika Klemenc-Ketiš: https://orcid.org/0000-0002-0270-1754 REFERENCES 1. Maher RL, Hanlon J, Hajjar ER. Clinical consequences of polypharmacy in the elderly. Expert Opin Drug Saf. 2014;13(1):57–65. doi: 10.1517/14740338.2013.827660. 2. Guthrie B, Makubate B, Hernandez-Santiago V, Dreischulte T. The rising tide of polypharmacy and drug-drug interactions: Population database analysis 1995–2010. BMC Med. 2015;13:74. doi: 10.1186/s12916-015- 0322-7. 3. Masnoon N, Shakib S, Kalisch-Ellett L, Caughey GE. What is polypharmacy? A systematic review of definitions. BMC Geriatr. 2017;17(1):230. doi: 10.1186/s12877-017-0621-2. 4. Beck A, Persaud N, Tessier LA, et al. Interventions to address potentially inappropriate prescriptions in primary care settings: A protocol for a systematic review. Syst Rev. 2022;11(1):225. doi: 10.1186/ s13643-022-02101-2. 5. Rankin A, Cadogan CA, Patterson SM, Kerse N, Cardwell CR, Bradley MC, et al. Interventions to improve the appropriate use of polypharmacy for older people. Cochrane Database Syst Rev. 2018;9:CD008165. doi: 10.1002/14651858.CD008165.pub4. 6. World Health Organization. Safer primary care: A global challenge [Internet]. Geneva: World Health Organization; 2012 [cited 2025 Oct 17]. Available at: https://www.who.int/publications/i/item/9789241503497 7. Cooper J, Williams H, Hibbert P, Edwards A, Butt A, Wood F, et al. Classification of patient-safety incidents in primary care. Bull World Health Organ. 2018;96(7):498–505. doi: 10.2471/BLT.17.199802. 8. Bates DW, Leape LL, Cullen DJ, Laird N, Petersen LA, Teich JM, et al. Effect of computerized physician order entry and a team intervention on prevention of serious medication errors. JAMA. 1998;280(15):1311– 1316. doi: 10.1001/jama.280.15.1311. 9. Kaushal R, Shojania KG, Bates DW. Effects of computerized physician order entry and clinical decision support systems on medication safety: a systematic review. Arch Intern Med. 2003;163(12):1409–1416. doi: 10.1001/archinte.163.12.1409. 10. Panagioti M, Khan K, Keers RN, Abuzour A, Phipps D, Kontopantelis E, et al. Prevalence, severity, and nature of preventable patient harm across medical care settings: Systematic review and meta-analysis. BMJ. 2019 Jul 17;366:l4185. doi: 10.1136/bmj.l4185. 11. James JT. A new, evidence-based estimate of patient harms associated with hospital care. J Patient Saf. 2013 Sep;9(3):122-128. doi: 10.1097/ PTS.0b013e3182948a69. 12. Panesar SS, deSilva D, Carson-Stevens A, Cresswell KM, Salvilla SA, Slight SP, et al. How safe is primary care? A systematic review. BMJ Qual Saf. 2016;25(7):544–553. doi: 10.1136/bmjqs-2015-004178. 13. Singh H, Schiff GD, Graber ML, Onakpoya I, Thompson MJ. The global burden of diagnostic errors in primary care. BMJ Qual Saf. 2017;26(6):484–494. doi: 10.1136/bmjqs-2016-005401. 14. Institute of Medicine. To err is human: Building a safer health system [Internet]. Washington (DC): National Academies Press; 2000 [cited 2025 Oct 17]. Available at: https://nap.nationalacademies.org/ catalog/9728/to-err-is-human-building-a-safer-health-system 15. Leape LL. Errors in medicine. Clin Chim Acta. 2009;404(1):2–5. doi: 10.1016/j.cca.2009.03.020. 16. Wachter RM. Patient safety at ten: Unmistakable progress, troubling gaps. Health Aff. 2010;29(1):165–173. doi: 10.1377/hlthaff.2009.0785. 17. Boussat B, Bougerol T, Detante O, Seigneurin A, François P. Experience Feedback Committee: A management tool to improve patient safety in mental health. Ann Gen Psychiatry. 2015 Sep 3;14:23. doi: 10.1186/ s12991-015-0062-2. 18. Avery AJ, Ghaleb M, Barber N, Dean Franklin B, Armstrong SJ, Serumaga B, et al. The prevalence and nature of prescribing and monitoring errors in English general practice: A retrospective case note review. Br J Gen Pract. 2013 Aug;63(613):e543-e553. doi: 10.3399/bjgp13X670679.. 19. Bodenheimer T, Pham HH. Primary care: Current problems and proposed solutions. Health Aff. 2010;29(5):799–805. doi: 10.1377/ hlthaff.2010.0026. 20. Shanafelt TD, Balch CM, Bechamps G, Russell T, Dyrbye L, Satele D, et al. Burnout and medical errors among American surgeons. Ann Surg. 2010;251(6):995–1000. doi: 10.1097/SLA.0b013e3181bfdab3. 21. Piccardi C, Detollenaere J, Vanden Bussche P, Willems S. Social disparities in patient safety in primary care: a systematic review. Int J Equity Health. 2018;17(1):114. doi: 10.1186/s12939-018-0828-2. 22. Vincent C, Amalberti R. Safer healthcare: Strategies for the real world [Internet]. Cham: Springer; 2016 [cited 2025 Oct 17]. Available at: https://link.springer.com/book/10.1007/978-3-319-25559-0 23. OECD. Does healthcare deliver? Results from the patient-reported indicator surveys (PaRIS) [Internet]. Paris: OECD Publishing; 2025 [cited 2025 May 31]. Available at: https://doi.org/10.1787/c8af05a5-en 24. Klemenc-Ketiš Z, Deilkås ET, Hofoss D, Bondevik GT. Patient safety culture in Slovenian out-of-hours primary care clinics. Zdr Varst. 2017;56(4):203–210. doi: 10.1515/sjph-2017-0027. 25. Tevžič Š, Poplas-Susič A, Klemenc-Ketiš Z. The safety culture of the Ljubljana Community Health Centre’s employees. Zdr Varst. 2021;60(3):145–151. doi: 10.2478/sjph-2021-0022. 26. Virtič Potočnik T, Klemenc-Ketiš Z. Perception of patient safety culture at the primary care level: The case of the Community Health Centre Ljubljana. Zdr Varst. 2024;63(1):21–29. doi: 10.2478/sjph-2024-0003. 27. Casaca P, Schäfer W, Nunes AB, Sousa P. Using patient-reported outcome measures and patient-reported experience measures to elevate the quality of healthcare. Int J Qual Health Care. 2023;35(4):mzad098. doi: 10.1093/intqhc/mzad098. 28. Ambrož M, Kendir C, Boerma W, Klemenc-Ketiš Z. Patient Reported Indicator Surveys (Paris): Methodological considerations of a field trial in Slovenia. Zdr Varst. 2024 Mar 1;63(1):30-37. doi: 10.2478/sjph-2024- 0005. 29. Ambrož M, Ropret N, Vračko P, Murko E, Kendir C, Bosnjak L, et al. Cultural adaptation of Patient-Reported Indicator Surveys (PaRIS) Patient and Primary Care Practice Questionnaires to the Slovenian context. Zdr Varst. 2025 Feb 28;64(2):93-102. doi: 10.2478/sjph-2025- 0012. 30. de Boer D, van den Berg M, Ballester M, Bloemeke J, Boerma W, de Bienassis K, et al. Assessing outcomes and experiences of care from the perspective of people living with chronic conditions (PaRIS survey). BMJ Open. 2022;12:e061424. doi: 10.1136/bmjopen-2022-061424. 102 10.2478/sjph-2026-0012 31. Bloemeke-Cammin J, Groene O, Ballester M, Guanais F, Groenewegen P, Kendir C, et al. International cross-cultural development and field testing of the primary care practice questionnaire for the PaRIS survey (PaRIS-PCPQ). BMC Prim Care. 2024 May 17;25(1):168. doi: 10.1186/ s12875-024-02375-8. 32. Organisation for Economic Co-operation and Development (OECD). PaRIS patient questionnaire [Internet]. Paris: OECD; 2024 [cited 2025 Oct 16]. Available at: https://www.oecd.org/content/dam/oecd/en/ about/programmes/patient-reported-indicator-surveys/PaRIS%20 patient%20questionnaire.pdf 33. Hernan AL, Giles SJ, Carson-Stevens A, et al. Nature and type of patient-reported safety incidents in primary care. BMJ Open. 2021;11(4):e042551. doi: 10.1136/bmjopen-2020-042551. 34. Lawati MHA, Dennis S, Short SD, Abdulhadi NN. Patient safety and safety culture in primary health care: A systematic review. BMC Fam Pract. 2018 Jun 30;19(1):104. doi: 10.1186/s12875-018-0793-7. 103 10.2478/sjph-2026-0012