Table 2.
Odds ratio (OR) by study design.
| ATC class second level | ATC class fourth level | Case-crossover | Matched case-control |
|---|---|---|---|
| Drugs for acid related disorders | A02BA | 1.88 | |
| A02BX | 1.19 | ||
| Drugs for functional gastrointestinal disorders | A03FA | 1.24 | |
| Laxatives | A06AD | 1.37 | |
| Mineral supplements | A12CC | 1.10 | |
| A12AX | 1.57 | ||
| Antianemic preparations | B03AA | 1.20 | |
| B03BB | 1.24 | ||
| Peripheral vasodilators | C04AX | 1.15 | |
| Antifungals for dermatological use | D01AE | 1.13 | |
| Corticosteroids | D07AB | 1.16 | |
| Sex hormones and modulators of the genital system | G03CA | 1.20 | |
| Muscle relaxants | M03BX | 1.23 | |
| Analgesics | N02BG | 1.09 | |
| Antiepileptics | N03AA | 2.93 | |
| N03AF | 1.34 | 2.11 | |
| N03AX | 1.19 | ||
| Psycholeptics | N05BA | 1.11 | |
| N05CD | 1.37 | 1.09 | |
| N05CX | 1.01 | 1.46 | |
| Psychoanaleptics | N06AB | 1.06 | |
| N06AX | 1.05 | 1.11 | |
| Drugs for obstructive airway diseases | R03BB | 1.23 | |
| Cough and cold preparations | R05DA | 1.08 | |
| Antihistamines for systemic use | R06AX | 1.06 |
Odds ratio estimates are displayed only for selected risk factors.