Characteristics of the study cohort
| Exposed to 5-aminosalicylic acid* | |||
|---|---|---|---|
| In the 1st trimester or 30 days before pregnancy (n=60) | During pregnancy (n=88) | Not exposed* (n=19 418) | |
| *Represents 52 women exposed during the first time period, 74 during the second time period, and 16 486 different unexposed women. | |||
| Mother's age (y) | |||
| Mean (SD) | 30.1 (4.8) | 30.7 (4.4) | 28.7 (4.7) |
| Range | 21–42 | 21–42 | 13–47 |
| Smokers (n (%)) | 9 (15.0) | 14 (15.9) | 5102 (26.3) |
| Parity >1 (n (%)) | 30 (50.0) | 53 (60.2) | 9191 (47.3) |
| Preterm birth (gestational age <37 weeks) (n (%)) | 6 (10.0) | 8 (9.1) | 1062 (5.5) |
| Birth weight (g) | |||
| Mean (SD) | 3564 (639) | 3567 (579) | 3503 (587) |
| Range | 1310–5550 | 1310–5550 | 500–6230 |
| Low birth weight (< 2500 g) (n (%)) | 3 (5.0) | 4 (4.6) | 844 (4.4) |
| Congenital malformation (n (%)) | 4 (6.7) | 5 (5.7) | 711 (3.7) |
| Stillbirth (n (%)) | 2 (3.3) | 3 (3.4) | 109 (0.6) |