| Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OR | CI 95Â % | p | OR | CI 95Â % | p | OR | CI 95Â % | p | OR | CI 95Â % | p | OR | CI 95Â % | p | |
Mother’s BMI | |||||||||||||||
 Normal | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Underweight | 1.06 | (0.73–1.53) | 0.760 | 1.06 | (0.73–1.53) | 0.771 | 1.05 | (0.72–1.52) | 0.798 | 1.11 | (0.76–1.62) | 0.599 | 1.13 | (0.77–1.65) | 0.533 |
 Overweight | 1.31 | (1.09–1.57) | 0.003 | 1.30 | (1.08–1.56) | 0.004 | 1.29 | (1.07–1.54) | 0.007 | 1.24 | (1.03–1.50) | 0.024 | 1.24 | (1.03–1.49) | 0.025 |
 Obese | 1.52 | (1.07–2.15) | 0.018 | 1.50 | (1.06–2.13) | 0.022 | 1.49 | (1.05–2.11) | 0.026 | 1.24 | (0.86–1.77) | 0.244 | 1.22 | (0.85–1.75) | 0.282 |
Mother’s education level | |||||||||||||||
 Left school at 15 or later | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Left school before 14 | 1.38 | (1.16–1.65) | <0.001 | 1.38 | (1.16–1.65) | <0.001 | 1.36 | (1.13–1.63) | 0.001 | 1.34 | (1.11–1.61) | 0.002 | 1.34 | (1.11–1.61) | 0.002 |
Father’s social class at birth | |||||||||||||||
 Non-manual | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Manual | 1.25 | (1.05–1.49) | 0.013 | 1.25 | (1.05–1.49) | 0.013 | 1.23 | (1.02–1.47) | 0.029 | 1.17 | (0.98–1.41) | 0.087 | 1.18 | (0.98–1.42) | 0.082 |
Overcrowding | |||||||||||||||
  > 1.5 personne/chambre | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
  < =1.5 personne/chambre | 0.97 | (0.77–1.22) | 0.775 | 0.97 | (0.77–1.22) | 0.789 | 0.98 | (0.77–1.24) | 0.842 | 0.97 | (0.76–1.24) | 0.805 | 0.98 | (0.77–1.25) | 0.882 |
Birthweight | |||||||||||||||
 Q1 - Low weight | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Q2 | 0.87 | (0.70–1.07) | 0.187 | 0.87 | (0.71–1.08) | 0.204 | 0.88 | (0.71–1.09) | 0.229 | 0.87 | (0.70–1.08) | 0.207 | 0.88 | (0.71–1.09) | 0.239 |
 Q3 | 1.02 | (0.82–1.27) | 0.832 | 1.03 | (0.83–1.28) | 0.800 | 1.04 | (0.83–1.29) | 0.741 | 1.01 | (0.80–1.26) | 0.961 | 1.01 | (0.81–1.27) | 0.900 |
 Q4 - High weight | 0.90 | (0.72–1.14) | 0.390 | 0.91 | (0.73–1.15) | 0.430 | 0.92 | (0.73–1.16) | 0.471 | 0.84 | (0.66–1.07) | 0.151 | 0.84 | (0.66–1.07) | 0.161 |
Mother smoked during pregnancy | |||||||||||||||
 No | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Sometimes | 1.16 | (0.87–1.56) | 0.308 | 1.16 | (0.86–1.55) | 0.328 | 1.14 | (0.85–1.53) | 0.389 | 1.07 | (0.79–1.45) | 0.644 | 1.07 | (0.79–1.45) | 0.645 |
 Moderately | 1.12 | (0.91–1.38) | 0.268 | 1.12 | (0.91–1.38) | 0.272 | 1.12 | (0.91–1.38) | 0.286 | 1.06 | (0.86–1.31) | 0.594 | 1.06 | (0.86–1.31) | 0.576 |
 Heavily | 0.98 | (0.78–1.24) | 0.878 | 0.97 | (0.77–1.23) | 0.824 | 0.95 | (0.75–1.20) | 0.639 | 0.90 | (0.70–1.14) | 0.371 | 0.89 | (0.70–1.14) | 0.361 |
Mother’s age at birth | |||||||||||||||
 23 years or less | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 24 to 27 years | 1.09 | (0.90–1.33) | 0.377 | 1.09 | (0.90–1.33) | 0.381 | 1.10 | (0.90–1.35) | 0.335 | 1.11 | (0.91–1.36) | 0.300 | 1.12 | (0.91–1.37) | 0.274 |
 28 to 31 years | 1.01 | (0.82–1.26) | 0.894 | 1.02 | (0.82–1.27) | 0.879 | 1.04 | (0.83–1.30) | 0.719 | 1.05 | (0.83–1.31) | 0.697 | 1.04 | (0.83–1.31) | 0.712 |
 32 years or more | 0.83 | (0.66–1.05) | 0.119 | 0.84 | (0.66–1.06) | 0.134 | 0.86 | (0.68–1.09) | 0.209 | 0.85 | (0.66–1.08) | 0.179 | 0.85 | (0.66–1.08) | 0.182 |
Breastfed | |||||||||||||||
 No | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Yes, for less than 1 month | 1.02 | (0.83–1.24) | 0.877 | 1.01 | (0.83–1.24) | 0.887 | 1.01 | (0.83–1.24) | 0.913 | 1.02 | (0.83–1.26) | 0.852 | 1.02 | (0.83–1.26) | 0.863 |
 Yes, more than 1 month | 1.00 | (0.84–1.19) | 0.993 | 1.00 | (0.84–1.19) | 0.995 | 1.01 | (0.84–1.20) | 0.934 | 1.03 | (0.86–1.22) | 0.781 | 1.03 | (0.86–1.23) | 0.780 |
Parity | |||||||||||||||
 Oldest child | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 2nd child | 0.88 | (0.74–1.05) | 0.168 | 0.88 | (0.74–1.05) | 0.159 | 0.87 | (0.73–1.04) | 0.132 | 0.88 | (0.73–1.05) | 0.165 | 0.87 | (0.73–1.05) | 0.148 |
 3rd child or more | 1.00 | (0.82–1.23) | 0.965 | 1.00 | (0.81–1.22) | 0.973 | 0.97 | (0.78–1.19) | 0.747 | 0.99 | (0.80–1.23) | 0.946 | 0.99 | (0.80–1.23) | 0.924 |
Gestational age | |||||||||||||||
 38 weeks or less | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 39 to 41 weeks | 1.19 | (0.89–1.60) | 0.248 | 1.19 | (0.88–1.60) | 0.253 | 1.21 | (0.90–1.62) | 0.215 | 1.17 | (0.87–1.57) | 0.295 | 1.18 | (0.87–1.60) | 0.284 |
 42 weeks or more | 1.18 | (0.85–1.62) | 0.323 | 1.17 | (0.85–1.61) | 0.331 | 1.18 | (0.86–1.63) | 0.299 | 1.17 | (0.86–1.61) | 0.318 | 1.19 | (0.86–1.63) | 0.297 |
Type of delivery | |||||||||||||||
 Vaginal | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Emergency caesarean | 1.86 | (1.06–3.29) | 0.032 | 1.83 | (1.03–3.23) | 0.038 | 1.83 | (1.03–3.25) | 0.038 | 1.98 | (1.11–3.56) | 0.022 | 2.02 | (1.13–3.63) | 0.018 |
 Elective caesarean | 0.73 | (0.37–1.44) | 0.359 | 0.73 | (0.37–1.44) | 0.361 | 0.77 | (0.39–1.54) | 0.465 | 0.75 | (0.37–1.50) | 0.412 | 0.75 | (0.37–1.51) | 0.423 |
Adverse childhood experiences | |||||||||||||||
 None |  |  |  | 1 |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 One |  |  |  | 0.93 | (0.78–1.12) | 0.452 | 0.91 | (0.76–1.09) | 0.296 | 0.91 | (0.76–1.10) | 0.331 | 0.91 | (0.76–1.10) | 0.341 |
 Two or more |  |  |  | 1.19 | (0.89–1.59) | 0.243 | 1.12 | (0.83–1.50) | 0.469 | 1.18 | (0.87–1.59) | 0.294 | 1.16 | (0.86–1.57) | 0.340 |
Smoking status at 23 | |||||||||||||||
 Non-smoker |  |  |  |  |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Former smoker |  |  |  |  |  |  | 0.95 | (0.78–1.15) | 0.575 | 0.94 | (0.77–1.15) | 0.541 | 0.94 | (0.77–1.14) | 0.521 |
 Smoker - Less than 10 cig. |  |  |  |  |  |  | 1.13 | (0.82–1.56) | 0.438 | 1.15 | (0.82–1.60) | 0.414 | 1.15 | (0.82–1.60) | 0.424 |
 Smoker - 10 to 19 cig. |  |  |  |  |  |  | 0.95 | (0.74–1.22) | 0.685 | 0.98 | (0.76–1.27) | 0.883 | 0.97 | (0.76–1.26) | 0.839 |
 Smoker - More than 20 cig. |  |  |  |  |  |  | 1.11 | (0.88–1.40) | 0.378 | 1.13 | (0.90–1.44) | 0.295 | 1.13 | (0.89–1.44) | 0.304 |
Alcohol consumption at 23 | |||||||||||||||
 Moderate |  |  |  |  |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Abstainers |  |  |  |  |  |  | 1.00 | (0.76–1.31) | 0.991 | 1.02 | (0.77–1.35) | 0.893 | 0.99 | (0.75–1.31) | 0.937 |
 Heavy drinkers |  |  |  |  |  |  | 1.08 | (0.91–1.27) | 0.368 | 1.06 | (0.90–1.26) | 0.497 | 1.06 | (0.89–1.25) | 0.521 |
Physical activity at 23 | |||||||||||||||
 Physically active |  |  |  |  |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Moderately active |  |  |  |  |  |  | 1.13 | (0.91–1.40) | 0.259 | 1.13 | (0.91–1.40) | 0.283 | 1.12 | (0.90–1.40) | 0.297 |
 Inactive |  |  |  |  |  |  | 1.25 | (1.04–1.52) | 0.020 | 1.25 | (1.03–1.53) | 0.026 | 1.25 | (1.02–1.52) | 0.029 |
Malaise inventory at 23 | |||||||||||||||
 No |  |  |  |  |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Yes |  |  |  |  |  |  | 1.30 | (0.87–1.94) | 0.200 | 1.28 | (0.85–1.94) | 0.237 | 1.30 | (0.86–1.97) | 0.218 |
Education level at 23 | |||||||||||||||
 Passed A levels |  |  |  |  |  |  | 1 |  |  | 1 |  |  | 1 |  |  |
 Passed O levels |  |  |  |  |  |  | 1.04 | (0.84–1.31) | 0.705 | 0.98 | (0.79–1.23) | 0.893 | 1.00 | (0.78–1.28) | 0.991 |
 No qualifications |  |  |  |  |  |  | 1.12 | (0.88–1.43) | 0.356 | 0.99 | (0.77–1.26) | 0.913 | 1.00 | (0.75–1.34) | 0.986 |
BMI at 23 | |||||||||||||||
 Normal |  |  |  |  |  |  |  |  |  | 1 |  |  | 1 |  |  |
 Underweight |  |  |  |  |  |  |  |  |  | 0.52 | (0.28–0.96) | 0.036 | 0.50 | (0.27–0.93) | 0.028 |
 Overweight |  |  |  |  |  |  |  |  |  | 2.27 | (1.83–2.82) | <0.001 | 2.27 | (1.83–2.82) | <0.001 |
 Obese |  |  |  |  |  |  |  |  |  | 3.52 | (1.92–6.46) | <0.001 | 3.43 | (1.87–6.31) | <0.001 |
Occupational social class at 33 | |||||||||||||||
 Non-manual |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
 Manual |  |  |  |  |  |  |  |  |  |  |  |  | 0.94 | (0.77–1.14) | 0.516 |
Wealth at 33 | |||||||||||||||
 Not owner |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
 Owner - Q1 (Low price) |  |  |  |  |  |  |  |  |  |  |  |  | 0.79 | (0.62–1.01) | 0.062 |
 Owner - Q2 |  |  |  |  |  |  |  |  |  |  |  |  | 0.83 | (0.65–1.06) | 0.131 |
 Owner - Q3 |  |  |  |  |  |  |  |  |  |  |  |  | 0.83 | (0.64–1.07) | 0.145 |
 Owner - Q4 |  |  |  |  |  |  |  |  |  |  |  |  | 0.78 | (0.60–1.02) | 0.066 |
Marital status at 33 | |||||||||||||||
 Couple |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
 Single |  |  |  |  |  |  |  |  |  |  |  |  | 0.96 | (0.76–1.20) | 0.709 |
 Divorced or widowed |  |  |  |  |  |  |  |  |  |  |  |  | 0.69 | (0.47–1.00) | 0.050 |