Birth weight, body mass index (BMI) (kg/m2), BMI velocities and background variables
| Men | Women | |||||
| N (%) | Mean* | SD* | N (%) | Mean* | SD* | |
| Total | 2325 (52) | 2136 (48) | ||||
| Birth weight (g) | 2316 | 3475 | 627 | 2126 | 3315 | 596 |
| BMI (kg/m2) at age: | ||||||
| 2 years | 1821 | 18.01 | 2.91 | 1630 | 17.66 | 2.91 |
| 4 years | 1999 | 16.33 | 1.94 | 1824 | 16.10 | 1.97 |
| 6 years | 1872 | 15.90 | 1.55 | 1710 | 15.75 | 1.73 |
| 7 years | 1890 | 15.88 | 1.56 | 1788 | 15.76 | 1.95 |
| 11 years | 1899 | 17.22 | 2.49 | 1778 | 17.53 | 3.21 |
| 15 years | 1768 | 19.55 | 2.85 | 1609 | 20.71 | 3.75 |
| 20 years | 1737 | 22.69 | 2.92 | 1661 | 21.91 | 3.36 |
| 26 years | 1795 | 23.61 | 3.40 | 1746 | 22.58 | 3.85 |
| 36 years | 1564 | 25.03 | 3.81 | 1574 | 23.80 | 4.98 |
| BMI velocity (kg/m2/year) | ||||||
| 4–7 years | 1700 | −0.15 | 0.65 | 1592 | −0.11 | 0.66 |
| 7–15 years | 1576 | 0.46 | 0.30 | 1459 | 0.61 | 0.37 |
| 15–26 years | 1439 | 0.36 | 0.27 | 1388 | 0.18 | 0.30 |
| Father's social class | ||||||
| Professional/intermediate | 475 (20) | 435 (20) | ||||
| Skilled non-manual | 382 (16) | 364 (17) | ||||
| Skilled manual | 659 (28) | 634 (30) | ||||
| Partly skilled/unskilled | 620 (27) | 544 (25) | ||||
| Missing | 189 (8) | 159 (7) | ||||
| Education age 26 years | ||||||
| None | 999 (43) | 994 (47) | ||||
| Ordinary level | 315 (14) | 490 (23) | ||||
| Advanced level | 845 (36) | 509 (24) | ||||
| Missing | 166 (7) | 143 (7) | ||||
| Lifetime smoking | ||||||
| Never smoker | 700 (30) | 902 (42) | ||||
| Ex-smoker | 754 (32) | 536 (25) | ||||
| Smoker | 713 (31) | 579 (27) | ||||
| Missing | 158 (7) | 119 (6) | ||||
| Number of deaths | 195 | 137 | ||||
↵* Weighted, correcting for the sample design.