Table 4

HRs (with 95% CIs) of exposed and unexposed children (exposure stratified by time since exposure and age at exposure)

Time since exposure (months)Age at exposure (months)Total
0–1112–3536–59
0–51.23 (0.5 to 2.8)0.96 (0.4 to 2.3)1.52 (0.5 to 4.8)1.16 (0.7 to 2.0)
6–112.22 (1.1 to 4.7)1.89 (0.8 to 4.2)4.68 (1.7 to 13)2.36 (1.5 to 3.8)
12+0.89 (0.2 to 3.6)1.91 (0.8 to 4.6)7.18 (2.1 to 24)1.88 (1.0 to 3.5)
Total1.46 (0.9 to 2.5)1.46 (0.9 to 2.4)3.00 (1.6 to 5.8)1.66 (1.2 to 2.3)