Predictors (odds ratios and 95% CI) of high risk status (low birth weight and high BMI at 33 years)
| Predictors | Men (n = 284/3462) | Women (n = 338/3555) | ||||
|---|---|---|---|---|---|---|
| OR(95% CI) | OR(95% CI) | |||||
| N | Unadjusted | Adjusted† | N | Unadjusted | Adjusted† | |
| *Reference category; †adjusted model includes all variables except parental age. | ||||||
| Maternal BMI | 1.03 (1.00 to 1.07) | 1.02 (0.99 to 1.06) | 1.03 (1.00 to 1.06) | 1.03 (0.99 to 1.06) | ||
| Paternal BMI | 1.06 (1.01 to 1.10) | 1.07 (1.01 to 1.10) | 1.08 (1.04 to 1.12) | 1.07 (1.03 to 1.11) | ||
| Maternal height (cm) | 0.95 (0.93 to 0.97) | 0.95 (0.93 to 0.97) | 0.95 (0.93 to 0.97) | 0.96 (0.94 to 0.98) | ||
| Paternal height (cm) | 0.99 (0.97 to 1.00) | 1.00 (0.99 to 1.02) | 0.97 (0.96 to 0.98) | 0.99 (0.97 to 1.00) | ||
| Mother’s age at birth | 0.99 (0.97 to 1.01) | − | 0.99 (0.97,1.01) | − | ||
| Father’s age at birth | 0.99 (0.97 to 1.01) | − | 1.00 (0.98 to 1.02) | − | ||
| Social class | ||||||
| non-manual* | 1050 | − | − | 1031 | − | − |
| manual | 2412 | 1.90(1.39 to 2.59) | 1.61 (1.16 to 2.21) | 2524 | 1.88 (1.41 to 2.51) | 1.49 (1.11 to 2.02) |
| Maternal smoking during pregnancy | ||||||
| non-smoker* | 2377 | − | − | 2413 | − | − |
| smoker | 1085 | 1.85 (1.44 to 2.37) | 1.79 (1.37 to 2.29) | 1142 | 2.31 (1.83 to 2.90) | 2.27 (1.79 to 2.86) |
| Birth order | ||||||
| 1st born* | 1236 | − | − | 1311 | − | − |
| 2nd born or greater | 2226 | 0.80 (0.62 to 1.03) | 0.72 (0.55 to 0.93) | 2244 | 0.72 (0.57 to 0.90) | 0.64 (0.50 to 0.81) |
| Breast feeding | ||||||
| never | 1035 | 1.30 (0.98 to 1.73) | 1.15 (0.86 to 1.54) | 1018 | 1.46 (1.12 to 1.91) | 1.26 (0.96 to 1.66) |
| <1 month | 848 | 0.99 (0.72 to 1.37) | 0.90 (0.65 to 1.25) | 892 | 1.22 (0.91 to 1.63) | 1.03 (0.77 to 1.39) |
| >1 month* | 1579 | − | 1645 | − | − | |