From: Validity and reliability of the Portuguese version of the modified Migraine Disability Assessment
Country | Language | Source | Test-retest reproducibility | Internal consistency |
---|---|---|---|---|
Portugal | Portuguese | 0.90 b | 0.80 | |
Lebanon | Arabic | 14 | 0.99 b | 0.81 |
Taiwan | Chinese | 15 | 0.79 a | 0.67 |
USA | English | 8 | 0.80 a | 0.76 |
UK | English | 8 | 0.83 a | 0.73 |
Canada | French | 16 | 0.84 b | NA |
Switzerland | German | 17 | 0.99 b | 0.69 |
Greece | Greek | 18 | 0.82 b | 0.71 |
India | Hindi | 19 | 0.94 a | > 0.90 |
Italia | Italian | 20 | 0.81 a | 0.74 |
Japan | Japanese | 21 | 0.83 a | 0.82 |
Malaysia | Malay | 22 | 0.87 a | 0.84 |
Iran | Persian | 23 | 0.71 a | 0.80 |
Brasil | Portuguese | 24 | 0.77 a | 0.70 |
Spain | Spanish | 25 | 0.81 b | 0.80 |
Thailand | Thai | 26 | 0.76 b | 0.91 |
Turkey | Turkish | 27 | 0.68 a | 0.73 |