Table 3. Differences between study years and type of self-prescribed medication.
| DRUGa | 1st year | 3rd year | 6th year | Total | ?2 | p |
| analgesics | 43.4% | 51.9% | 72.0% | 55.4% | 76.760 | .000 |
| vitamin supplements | 43.9% | 45.9% | 47.5% | 45.7% | 1.224 | .542 |
| antipyretics | 26.9% | 35.6% | 63.3% | 41.5% | 130.285 | .000 |
| antibioticsb | 40.0% | 31.3% | 44.7% | 38.9% | 15.912 | .000 |
| decongestants | 25.2% | 21.1% | 33.9% | 26.8% | 18.202 | .000 |
| mineral supplements | 15.3% | 16.8% | 19.3% | 17.1% | 2.608 | .271 |
| histamine antagonists | 12.7% | 12.3% | 19.1% | 14.7% | 9.810 | .007 |
| herbal preparations | 12.3% | 13.0% | 16.7% | 14.0% | 4.050 | .132 |
| sedativesb | 7.2% | 12.8% | 19.8% | 13.0% | 31.152 | .000 |
| antidiarrhoeals | 10.2% | 9.3% | 17.6% | 12.3% | 16.584 | .000 |
| corticosteroids | 8.9% | 7.3% | 13.9% | 10.0% | 11.031 | .004 |
| antimycoticsb | 5.9% | 7.0% | 9.4% | 7.4% | 4.075 | .130 |
| “morning after” pills | 7.2% | 6.8% | 5.4% | 6.5% | 1.262 | .532 |
| oral contraceptives | 5.5% | 3.5% | 5.2% | 4.8% | 2.112 | .348 |
| laxatives | 5.3% | 4.8% | 1.4% | 3.9% | 10.369 | .006 |
| supplements for body mass reduction | 3.4% | 2.0% | 0.7% | 2.1% | 7.915 | .019 |
| antidepressantsb | 4.2% | 1.0% | 0.5% | 2.0% | 19.094 | .000 |
| anabolic steroids | 1.1% | 1.8% | 0.2% | 1.0% | 4.806 | .090 |
a
1.9% respondents additionally stated that they did not know what medications they had self-prescribed.
b
prescription-only drugs.