Table 1. Baseline Patient Characteristics and Medication Use.
| Characteristic | No. (%) | ||||
|---|---|---|---|---|---|
| Population (N = 792 130) |
No Medications (n = 611 370) |
Antibiotics (n = 131 708) |
H2RAs (n = 60 209) |
PPIs (n = 13 687) |
|
| Girls | 395 215 (49.9) | 311 086 (50.9) | 60 775 (46.1) | 28 157 (46.8) | 6196 (45.3) |
| Boys | 396 915 (50.1) | 300 284 (49.1) | 70 933 (53.9) | 32 052 (53.2) | 7491 (54.7) |
| Cesarean delivery | 206 637 (26.1) | 155 564 (25.4) | 36 125 (27.4) | 18 360 (30.5) | 4351 (31.8) |
| Prematurity | 31 061 (3.9) | 22 378 (3.7) | 5212 (4.0) | 4177 (6.9) | 1040 (7.6) |
Abbreviations: H2RAs, histamine-2 receptor antagonists; PPIs, proton pump inhibitors.