Table 2 Association between mode of delivery and otitis media in the offspring.
From: Birth by Caesarean section and otitis media in childhood: a retrospective cohort study
Vaginal delivery | Caesarean section | |
|---|---|---|
Risk of otitis media | ||
Time to first episode, median (IQR) [days] | 495 (309–972) | 486 (312–951) |
Unadjusted HR (95% CI) | Ref. | 1.09 (1.06, 1.12) |
Adjusted HR (95% CI) | Ref. | 1.06 (1.03, 1.09) |
Number of otitis media episodes | ||
Median (IQR) | 2 (1–5) | 2 (1–6) |
Unadjusted IRR (95% CI) | Ref. | 1.11 (1.07, 1.14) |
Adjusted IRR (95% CI) | Ref. | 1.04 (1.01, 1.07) |
High utilizer* for otitis media episodes | ||
% | 5.0% | 6.2% |
Unadjusted OR (95% CI) | Ref. | 1.25 (1.12, 1.39) |
Adjusted OR (95% CI) | Ref. | 1.10 (0.99, 1.23) |
