Pos1486-Hpr daily Activity Impairment Is Mediated by Both Oral Dryness and Oral Health Related Quality of Life in Patients With Primary Sjögren’s Syndrome

Abstract

Background:Both oral functions and oral health-related quality of life (OHRQoL) are poorly affected by low salivary flow rate in patients with primary Sjögren’s syndrome (pSS).Objectives:The aim of the study was to evaluate the effects of oral dryness and OHRQoL on daily life in patients with primary Sjögren’s syndrome (pSS).Methods:In this cross-sectional study, 86 patients with pSS (M/F: 5/81; mean age: 52.4 ± 11.6 years) were included. The data were collected by clinical examination and a questionnaire regarding patient-reported outcome measures (PROMs). Patient filled PROMs regarding Oral Health Impact Profile-14 (OHIP-14) for OHRQoL, Work Productivity and Activity Impairment scale (WPAI) for Daily life and the EULAR Sjogren’s Syndrome Patient Reported Index (ESSPRI) for their symptoms. Unstimulated whole saliva flow rates (U-WSFR) of patients were calculated as ml/min. Increases in PROMs and decreases in U-WSFR reflected poor conditions. After preliminary analysis, a mediation analysis was used to evaluate the relations among variables.Results:WPAI-Daily activity impairment score was higher in patients with low U-WSFR (≤0,1 ml/min) than the others (67±29,8 vs 52,5±28,6) (p=0.042). Both U-WSFR (0,43±0,57 ml/min) and ESSPRI-Dryness score (6.31 ± 2.71) were correlated with scores of OHIP-14 (25,96±17,13)(r:- 0,38 p=0.000; r: 0,37 p=0.000) and WPAI-Daily activity impairment (57,96±29,71)(r: -0,36 p=0.004; r: 0,53 p=0.000). Moreover, scores of ESSPRI-Pain (5,16±3,12) and ESSPRI-Fatigue (5,41±2,97) were also related to WPAI-Daily activity impairment score (r: 0,41 p=0.001; r:0,49 p=0.000, respectively).In the mediation analysis, WPAI-Daily activity impairment score (57.9 ± 29.7) was directly mediated by ESSPRI-Dryness score (p=0.0010) and indirectly mediated by OHIP-14 score (25.9 ± 17.1) (p=0.0357). After mediation analysis, a bootstrap analysis with 5000 replications was applied to estimate the mediation effect to generate 95% CI. Percentile bootstrap of OHIP-14 score was found to be an effective mediator for Daily activity impairment based on 5000 bootstrap samples.Conclusion:Both oral dryness and poor OHRQoL in patients with pSS affected daily activity impairment. Therefore, the patients’ needs for improving oral health were critical components of treatment plans to improve the daily activity of SjS patients.Disclosure of Interests:None declared