translation and psychometric evaluation of the partners in health scale among iranian adults with chronic diseases

Objectives: characterizing the psychometric attributes of the persian variant of partners in health (pih) in multiple sclerosis (ms), diabetes, and low back pain (lbp) patients. methods: in this cross-sectional study, 183 ms, diabetes, and lbp patients (70 male, 113 female) were treated with pih post-forward-backward translation. confirmatory factor analysis was used for studying the factor structure. cronbach’s α and mcdonald’s ω coefficients were used to analyze pih internal consistency. we used an interclass correlation coefficient to evaluate test-retest reliability. criterion validity was determined by studying the correlation of pih and short form (36) health survey (sf-36), diabetes self-management scale (dsms), and self-efficacy in chronic disease self-management (ses6g). results: the median age of the participants was 49.73±15.16 years, 113 (61.75%) of them were female, 64 (35.0%) had ms, 66 (36.1%) had diabetes, and 53 (29.0%) had lbp. content validity was determined across all areas (clarity, relevancy, simplicity) by a content validity index ≥0.82. additionally, all items were confirmed via a content validity ratio ≥0.78. the outcome of cfa depicts that the statistics presented as model fit were as follows: cfi= 0.938, nfi= 0.899, and rmsea= 0.085. all pih items exhibited valid internal consistency (0.886- 0.893). the pih showed sufficient test-retest reliability regarding its corresponding subscales (0.554-0.679). the construct validity was confirmed by the total scores of pih correlated with the total score of sf-36, ses6g, and dsms. discussion: the persian variant of the pih showed sufficient validity and reliability as a measure to assess self-management in patients suffering from chronic disease (ms, diabetes, and lbp).