Reliability and validity of Hindi translation of the migraine disability assessment and headache impact test-6 questionnaires.
OBJECTIVE
The objective of the study was to assess the reliability and validity of the Hindi translation of the Migraine Disability Assessment (MIDAS) and Headache Impact Test-6 (HIT-6) questionnaires.


METHODS
The study was conducted on the migraine patients. For test-retest reliability, the respondents filled the MIDAS and HIT-6 questionnaires twice, at an interval of three weeks. For validity, the same population of patients filled the headache diary for three months. After three months they filled the MIDAS and HIT-6 questionnaires again. The patients were subgrouped according to their occupation and level of education. The test-retest reliability and validity were calculated by the Pearson correlation coefficient. Internal consistency was calculated using the Cronbach alpha.


RESULTS
A total of 236 migraine patients were screened. Seventy-nine patients fulfilled the inclusion criteria. A total of 69 patients completed the study. The HIT-6 questionnaire was applicable to all the subgroups of patients and had better comprehensibility than the MIDAS. Housewives missed out on the first two questions of the MIDAS and had lower mean MIDAS scores than HIT-6. The test-retest correlation coefficients for the total MIDAS and HIT-6 scores were 0.94 and 0.81, respectively. The correlation coefficients between the total score in the headache diary equivalent and the MIDAS and HIT-6 total score were 0.91 and 0.77, respectively. Cronbach alpha, a measure of internal consistency for the MIDAS questionnaire was > 0.90 at all the compilations. For the HIT-6 questionnaire, it ranged from 0.67 to 0.79.


CONCLUSIONS
The Hindi versions of MIDAS and HIT-6 questionnaires were reliable and valid, but could not be interchanged. HIT-6 had better comprehensibility.
Department of Neurology, Chhatrapati Shahuji Maharaj Medical University, Uttar Pradesh, Lucknow, India.
Ratish
R
Juyal
Rajesh
R
Verma
Ravindra Kumar
RK
Garg
Rakesh
R
Shukla
Atul
A
Agarwal
Maneesh Kumar
MK
Singh
Qual Life Res. 2003 Dec;12(8):975-9
14651416
Qual Life Res. 2003 Dec;12(8):963-74
14651415
Cephalalgia. 1999 Mar;19(2):107-14; discussion 74
10214536
J Formos Med Assoc. 2006 Jul;105(7):563-8
16877236
Cephalalgia. 1998 Jan;18(1):44-51
9601624
J Assoc Physicians India. 2005 Feb;53:111-5
15847028
Headache. 2004 Sep;44(8):786-93
15330825
Cephalalgia. 2008 Jan;28(1):26-34
17970768
Pain. 2000 Oct;88(1):41-52
11098098
Neurology. 1999 Sep 22;53(5):988-94
10496257
Cephalalgia. 2001 Dec;21(10):947-52
11843865
Headache. 2010 Mar;50(3):383-95
19817883
Headache. 2003 Apr;43(4):343-52
12656705