Social class at birth | I,II | 22 | 13.8 | 18 | 8.6 |
| III | 88 | 55.0 | 135 | 64.6 |
| IV,V | 50 | 31.3 | 56 | 26.8 |
Position in family | 1st | 87 | 52.7 | 107 | 50.5 |
| 2nd | 48 | 29.1 | 59 | 27.8 |
| 3rd | 15 | 9.1 | 31 | 14.6 |
| ⩾4th | 15 | 9.1 | 15 | 7.1 |
Social class at age 5 years | I,II | 30 | 20.1 | 39 | 20.9 |
| III | 66 | 44.3 | 76 | 40.6 |
| IV,V | 53 | 35.6 | 72 | 38.5 |
Chronic infection in childhood (up to age 15 years) | Yes | 81 | 49.4 | 123 | 58.3 |
No | 83 | 50.6 | 88 | 41.7 |
Social class at age 49–51 years | I,II | 74 | 45.4 | 105 | 49.5 |
| III | 66 | 40.5 | 67 | 31.6 |
| IV,V | 23 | 14.1 | 40 | 18.9 |
*Alcohol consumption at age 49–51 years | None | 12 | 7.4 | 29 | 13.7 |
Light | 62 | 38.0 | 88 | 41.7 |
| Moderate | 71 | 43.6 | 83 | 39.3 |
| Heavy | 18 | 11.0 | 11 | 5.2 |
Use of hormone replacement therapy by the age of 49–51 years | Yes | – | – | 101 | 48.8 |
No | – | – | 106 | 51.2 |
Physically inactive at age 49–51 years† | Yes | 15 | 9.2 | 29 | 13.7 |
No | 148 | 90.8 | 182 | 86.3 |
Number of pregnancies | 0 | – | – | 24 | 11.6 |
| 1 | – | – | 13 | 6.3 |
| 2 | – | – | 85 | 41.1 |
| 3 | – | – | 50 | 24.2 |
| 4 | – | – | 22 | 10.6 |
| 5+ | – | – | 13 | 6.3 |