Table 3 Association between type of delivery, asthma and rhinitis according to parental history of asthma (n = 672)
Variables | No parental history of asthma (n = 496) | Parental history of asthma (n = 176) | Effect modification | ||||
|---|---|---|---|---|---|---|---|
N (%) | OR (95 % CI) Unadjusted | OR (95 % CI) Adjusted | N (%) | OR (95 % CI) Unadjusted | OR (95 % CI) aAdjusted | p-value** | |
Active asthma | |||||||
Cesarean delivery | 29 (12.2 %) | 1.18 (0.68–2.07) | 1.31 (0.71–2.41) | 19 (20.4 %) | 1.07 (0.72–1.40) | 1.14 (0.43–2.99) | 0.78 |
Vaginal delivery | 27 (10.5 %) | – | – | 18 (19,4 %) | – | – | – |
Severe asthma | |||||||
Cesarean delivery | 18 (7.6 %) | 1.77 (0.85–3.67) | 2.14 (0.90–5.06) | 11 (12.4 %) | 1.33 (0.82–2.18) | 2.20 (0.96–5.08) | 0.31 |
Vaginal delivery | 11 (4.3 %) | – | – | 9 (10.3 %) | – | – | – |
Chronic rhinitis | |||||||
Cesarean delivery | 99 (41.6 %) | 1.84 (1.26–2.64) | 1.43 (0.94–2.18) | 39 (44.8 %) | 1.09 (0.60–1.97) | 1.56 (1.04–2.34) | 0.10 |
Vaginal delivery | 72 (27.9 %) | – | – | 38 (42.7 %) | – | – | – |
Allergic rhinitis | |||||||
Cesarean delivery | 63 (26.6 %) | 1.71 (1.11–2.63) | 1.46 (0.91–2.36) | 29 (33.3 %) | 1.61 (0.63–3.13) | 1.60 (1.01–2.55) | 0.02 |
Vaginal delivery | 45 (17.4 %) | – | – | 21 (23.6 %) | – | – | – |