Maternal characteristics associated with recurrent uncontrolled asthma
| Recurrent uncontrolled asthma | Controlled asthma | p-value | Relative risk (95% CI) | |
| Subjects n | 30 | 159 | ||
| Maternal age years | 28.0±5.6 | 25.7±5.4 | 0.039 | 1.06 (1.01–1.11) |
| BMI kg·m−2 | 30.4±7.8 | 28.1±7.0 | 0.1 | 1.03 (0.99–1.07) |
| BMI category | 0.189 | |||
| Normal weight | 9 (30.0) | 67 (42.1) | Reference | |
| Overweight | 6 (20.0) | 40 (25.2) | 1.10 (0.42–2.89) | |
| Obese | 15 (50.0) | 52 (32.7) | 1.89 (0.89–4.04) | |
| Weight gain during pregnancy kg | 7.9±7.2 | 11.3±6.2 | 0.009 | 0.92 (0.84–0.99) |
| Parity | <0.001 | N/A | ||
| 0 | 0 | 78 (49.1) | ||
| ≥1 | 30 (100.0) | 81 (50.9) | ||
| Smoking status | 0.002 | |||
| Never/former smoker | 15 (50.0) | 113 (71.1) | Reference | |
| Quit smoking during pregnancy | 2 (6.7) | 21 (13.2) | 0.74 (0.18–3.03) | |
| Current smoker | 13 (43.3) | 25 (15.7) | 2.92 (1.53–5.58) | |
| Baseline ICS use | 0.007 | |||
| Yes | 16 (53.3) | 45 (28.3) | 2.40 (1.25–4.60) | |
| No | 14 (46.7) | 114 (71.7) |
Data are presented as mean±sd or n (%), unless otherwise stated. BMI: body mass index; ICS: inhaled corticosteroid; N/A: not applicable.