Translation, cross-cultural adaptation, and validation of patient component of patient and observer scar assessment scale 3.0 into Hindi

Objectives: The patient and observer scar assessment scale (POSAS) 3.0 is a validated dual-perspective tool for scar evaluation. However, its utility is limited in non-English-speaking populations. This study aimed to translate, culturally adapt, and validate the patient component of POSAS 3.0 (generic and linear scar versions) into Hindi. Material and Methods: A prospective observational study was conducted from February to May 2025 at a tertiary care center. Standardized cross-cultural adaptation guidelines were followed for translation. A pilot study involving 30 Hindi-speaking adults (15 each with generic and linear scars) was performed to evaluate the reliability and validity of the translated versions. Internal consistency was measured using Cronbach’s alpha. Test-retest reliability was evaluated through Spearman correlation. Construct validity was assessed by comparing POSAS 3.0 (Hindi) scores with the pre-validated POSAS 2.0 (Hindi) using Spearman correlation, repeated measures analysis of variance, and Bland-Altman analysis. Results: The translated versions were well comprehended by the participants. Both versions demonstrated good internal consistency (α > 0.88) and strong test-retest reliability (ρ ≥ 0.94). The construct validity was supported by significant positive correlations with POSAS 2.0 scores and comparable performance across statistical analyses. Conclusion: The Hindi-translated patient component of POSAS 3.0 (generic and linear scar versions) is a reliable and valid instrument. It enables culturally appropriate and accurate scar assessment in Hindi-speaking populations, enhancing both clinical care and research applicability.