| Characteristic | Thelarche versus Synchronous OR (95% CI) | Pubarche versus Synchronous OR (95% CI) | Pubarche versus Thelarche OR (95% CI) |
| BMI at age 8 | | | | 5th percentile | 0.79 (0.41, 1.49) | 1.24 (0.58, 2.64) | 1.58 (0.71, 3.55) | 5th–85th percentile | Reference | Reference | Reference | 85th–95th percentile | 1.82 (1.39, 2.38) | 0.67 (0.41, 1.07) | 0.37 (0.23, 0.58) | 95th percentile | 2.65 (1.95, 3.60) | 0.29 (0.12, 0.67) | 0.11 (0.05, 0.25) | Child ethnic background | | | | White | Reference | Reference | Reference | Nonwhite | 0.47 (0.27, 0.80) | 1.55 (0.87, 2.77) | 3.23 (1.71, 6.45) | Mother’s prepregnancy BMI | | | | 18.5 | 0.64 (0.42, 0.99) | 0.68 (0.37, 1.24) | 1.05 (0.55, 1.99) | 18.5–24.9 | Reference | Reference | Reference | 25.0–29.9 | 0.90 (0.68, 1.15) | 0.60 (0.39, 0.94) | 0.68 (0.44, 1.06) | 30.0 | 1.13 (0.74, 1.73) | 0.35 (0.13, 1.01) | 0.31 (0.11, 0.89) | Birth order | | | | First born | Reference | Reference | Reference | Second born | 0.82 (0.66, 1.01) | 0.95 (0.69, 1.29) | 1.16 (0.85, 1.58) | Third born or later | 0.72 (0.57, 0.90) | 0.74 (0.53, 1.03) | 1.03 (0.74, 1.44) |
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