| 1st quintile | 2nd quintile | 3rd quintile | 4th quintile | 5th quintile |  | |||||
---|---|---|---|---|---|---|---|---|---|---|---|
Variable (units) | N | mean error (SD)* | N | mean error (SD)* | N | mean error (SD)* | N | mean error (SD)* | N | mean error (SD)* | P†|
Self-reported at recruitment in the MWS | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
   Height (cm) | 91 | 0.6 (2.2) | 93 | 1.0 (2.0) | 86 | 0.8 (3.8) | 89 | 0.7 (2.8) | 90 | 1.1 (2.3) | 0.645 |
   Weight (kg) | 92 | -0.2 (3.0) | 88 | -1.3 (2.8) | 90 | -2.3 (3.8) | 87 | -2.6 (4.2) | 86 | -4.9 (5.4) | <0.001 |
   Body mass index (kg/m2) | 90 | -0.3 (1.2) | 90 | -0.5 (1.8) | 88 | -0.9 (1.8) | 87 | -1.5 (1.6) | 82 | -2.5 (2.6) | <0.001 |
   Age at menarche ‡ (yr) | 12 | 1.4 (1.4) | 57 | 0.3 (0.9) | 117 | 0.1 (1.2) | 155 | 0.1 (1.1) | 53 | -0.2 (1.2) | <0.001 |
   Age at menopause (yr) | 33 | -0.1 (2.4) | 26 | -0.5 (2.4) | 31 | 0.1 (1.0) | 27 | -0.3 (0.8) | 17 | -0.8 (1.3) | 0.436 |
Self-reported at resurvey in the MWS | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | |
   Birth weight (kg) | 61 | -0.1 (0.4) | 45 | -0.1 (0.6) | 32 | 0.0 (0.4) | 59 | -0.1 (0.4) | 37 | -0.2 (0.4) | 0.377 |
   Mother's height (cm) | 56 | -0.1 (5.9) | 102 | -0.2 (4.2) | 52 | -0.6 (4.7) | 24 | -1.1 (5.6) | 60 | -3.1 (6.0) | 0.007 |
   Father's height (cm) | 47 | 5.1 (7.0) | 70 | 1.5 (5.2) | 51 | -2.2 (5.5) | 28 | -2.7 (7.1) | 44 | -1.8 (3.7) | <0.001 |
   Waist circumference (cm) | 53 | -2.6 (4.5) | 43 | -4.2 (6.1) | 49 | -6.3 (6.3) | 35 | -7.3 (7.2) | 26 | -13.8 (9.1) | <0.001 |
   Hip circumference (cm) | 50 | -0.7 (4.6) | 53 | -3.6 (5.3) | 44 | -2.6 (4.7) | 31 | -4.2 (4.9) | 26 | -6.6 (6.1) | <0.001 |
   Waist-to-hip ratio | 50 | 0.00 (0.04) | 41 | -0.03 (0.04) | 37 | -0.03 (0.05) | 39 | -0.05 (0.07) | 30 | -0.08 (0.06) | <0.001 |
   Waist-to-height ratio | 59 | -0.02 (0.03) | 40 | -0.03 (0.04) | 45 | -0.03 (0.05) | 33 | -0.05 (0.04) | 27 | -0.08 (0.06) | <0.001 |