Table 1 Descriptive (at test) and reliability data for the German MIDAS (n = 36)
Item | Wording of the original MIDAS [4] | Minimum | Maximum | Mean | SD | ICC | 95% CI |
|---|---|---|---|---|---|---|---|
1 | On how many days in the last 3 months did you miss work or school because of your headaches? | 0 (41.7%) | 92 (2.8%) | 14.47 | 26.75 | 0.988 | 0.976–0.994 |
2 | How many days in the last 3 months was your productivity at work or school reduced by half or more because of your headaches? (Do not include days you counted in question 1 where you missed work or school.) | 0 (33.3%) | 90 (0.0%) | 21.00 | 27.37 | 0.962 | 0.926–0.980 |
3 | On how many days in the last 3 months did you not do household work (such as housework, home repairs and maintenance, shopping, caring for children and relatives) because of your headaches? | 0 (19.4%) | 90 (0.0%) | 17.17 | 21.27 | 0.989 | 0.979–0.994 |
4 | How many days in the last 3 months was your productivity in household work reduced by half or more because of your headaches? (Do not include days you counted in question 3 where you did not do household work.) | 0 (19.4%) | 90 (0.0%) | 20.69 | 23.26 | 0.896 | 0.806–0.946 |
5 | On how many days in the last 3 months did you miss family, social or leisure activities because of your headaches? | 0 (8.3%) | 90 (0.0%) | 22.03 | 26.87 | 0.994 | 0.988–0.997 |
A | On how many days in the last 3 months did you have a headache? (If a headache lasted more than 1 day, count each day.) | 5 (0.0%) | 92 (2.8%) | 61.44 | 27.27 | 0.920 | 0.849–0.958 |
B | On a scale of 0–10, on average how painful were these headaches? (where 0 = no pain at all, and 10 = pain as bad as it can be.) | 1 (0.0%) | 10 (2.8%) | 5.86 | 1.57 | 0.884 | 0.785–0.939 |
Total Score MIDAS Items 1–5 (276 = worst) | 0 (5.6%) | 235 (0.0%) | 87.97 | 70.47 | 0.991 | 0.982–0.995 | |
Total Score MIDAS Items 1–5 (0 = worst, 100 = best) | 14.86 (0.0%) | 100 (5.6%) | 68.13 | 25.53 | 0.991 | 0.982–0.995 |