![]() ![]() The Pearson’s coefficient was used to assess the correlation between the score of the questions and the PSQI-H scores. For test-retest reliability assessment intraclass correlation coefficient (ICC) was measured between PSQI-H at baseline and PSQI after 4 weeks. The internal consistency of PSQI-H was assessed by Cronbach’s alpha. The PSQI-H was applied to 105 bilingual individuals knowing Hindi and English. Methods: The PSQI-H was developed from PSQI according to following steps: (a) translation, (b) back-translation, (c) comparison between translation and back-translation performed by a group of experts, and (d) pre-pilot test in intended population. Objectives: To assess the reliability and validity of the Hindi translated version of Pittsburgh Sleep Quality Index (PSQI-H). Pittsburg sleep quality index (PSQI) is widely used in different population groups to assess subjective sleep quality over last one month. Lack of a suitable tool to assess sleep quality in Hindi language is the main reason behind this. Background: Sleep quality is poorly understood in the Indian population.
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