Table 3.
Month of birth | Surveys timepoints | |||||||
---|---|---|---|---|---|---|---|---|
3 months | 6 months | 9 months | 12 months | |||||
OR (95% CI) | P | OR (95% CI) | P | OR (95% CI) | P | OR (95%CI) | P | |
Q1 (January–March) | Ref | Ref | Ref | Ref | ||||
Q2 (April–June) | 22.05 (2.90–167.78) | 0.003 | 2.30 (1.27–4.15) | 0.005 | 0.72 (0.39–1.33) | 0.298 | 0.70 (0.36–1.37) | 0.298 |
Q3 (July–September) | 88.96 (12.27–645.15) | < 0.001 | 1.22 (0.71–2.11) | 0.464 | 0.14 (0.07–0.30) | < 0.001 | 2.13 (1.25–3.61) | 0.005 |
Q4 (October–December) | 7.47 (0.96–58.30) | 0.055 | 0.15 (0.06–0.37) | < 0.001 | 0.64 (0.38–1.10) | 0.105 | 3.66 (2.15–6.22) | < 0.001 |
Q quarter, OR odds ratio, CI confidence interval, Ref reference, OR (95% CI) with P values (P) < 0.05 are shown in italic