Translation and validation study of the Hindi versions of the coronary revascularisation outcome questionnaire (CROQ-H)

Objectives: The Coronary Revascularisation Outcome Questionnaire (CROQ) is a patient reported outcome measure. It is used to measure health related outcomes from the patient’s perspective before and after coronary revascularisation procedures (PTCA and CABG). This study involved the translation and validation of the Coronary Revascularisation Outcome Questionnaire into Hindi language (CROQ-H). Methodology: The English version of the CROQ was translated into Hindi version; some terms were revised to, adjust for the sociocultural status of the Indian environment. Ten patients completed the questionnaire in a pilot to check for comprehension and, face validity. In the field study, subjects were recruited from Geetanjali Cardiac Centre (GCC), Geetanjali Medical College & Hospital, Geetanjali University, Udaipur, India. Questionnaires were self-administered. Analysis included acceptability, reliability (internal consistency and test–retest), validity (factor analysis, known-groups and responsiveness testing. Results: A total of 470 patients gave informed consent to participate and 391(83%) of these participated in field study. All versions were met pre-specified criteria; (1) acceptability of items (low missing data)); (2) reliability: internal consistency (Cronbach’s α > 0.70, item total correlations >0.30) and test–retest reliability (intra-class correlation coefficients > 0.70); (3) construct validity based on within-scale analyses (internal consistency (Cronbach’s α >0.70).