No Exposure to Substance, Industry & Job (N = 18,138) | No Substance Reported (N = 11,524) | Tertile 1 (N = 1023) | Tertile 2 (N = 1631) | Tertile 3 (N = 1142) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Mean | ± SD | Mean | ± SD | Mean | ± SD | Mean | ± SD | Mean | ± SD | |
Covariates | ||||||||||
Age at baseline | 57 | 8.2 | 55 | 7.7 | 54 | 7.3 | 55 | 7.4 | 56 | 7.9 |
BMI | 23 | 3.2 | 23 | 3.4 | 23 | 3.5 | 23 | 3.7 | 23 | 3.47 |
N | (%) | N | (%) | N | (%) | N | (%) | N | (%) | |
Education | ||||||||||
No formal Education | 7379 | 40.7 | 4577 | 39.7 | 318 | 31.1 | 640 | 39.2 | 495 | 43.4 |
Primary/Secondary | 9929 | 54.7 | 6872 | 59.6 | 694 | 67.8 | 974 | 59.7 | 628 | 55.0 |
Beyond Secondary | 830 | 4.6 | 75 | 0.7 | 11 | 1.1 | 17 | 1.0 | 19 | 1.7 |
Dialect | ||||||||||
Hokkiens | 10,378 | 57.2 | 5335 | 46.3 | 477 | 46.6 | 711 | 43.6 | 505 | 44.2 |
Alcohol Consumption | ||||||||||
Never drinker | 16,777 | 92.5 | 10,338 | 89.7 | 906 | 88.6 | 1426 | 87.4 | 998 | 87.4 |
Smoking status | ||||||||||
Never | 16,677 | 92.0 | 10,510 | 91.2 | 926 | 90.5 | 1452 | 89.0 | 999 | 87.5 |
Menopause Status | ||||||||||
Menopausal | 13,457 | 74.2 | 7988 | 69.3 | 643 | 62.9 | 1113 | 68.2 | 812 | 71.1 |
Age at Menarche | ||||||||||
< =14 years of age | 9575 | 52.8 | 6073 | 52.7 | 589 | 57.6 | 851 | 52.2 | 562 | 49.2 |
15–16 years of age | 6283 | 34.6 | 3982 | 34.6 | 328 | 32.1 | 548 | 33.6 | 401 | 35.1 |
> = 17 years of age | 2280 | 12.6 | 1469 | 12.8 | 106 | 10.4 | 232 | 14.2 | 179 | 15.7 |
Parity | ||||||||||
At least 1 child birth | 16,917 | 93.3 | 10,662 | 92.5 | 964 | 94.2 | 1532 | 93.9 | 1016 | 89.0 |
Age at First Birth | ||||||||||
< =20 years of Age | 5010 | 27.6 | 2848 | 24.7 | 238 | 23.3 | 392 | 24.0 | 337 | 29.5 |
21–30 years of age | 11,495 | 63.4 | 7390 | 64.1 | 686 | 67.1 | 1063 | 65.2 | 671 | 58.8 |
> = 31 years of age | 1633 | 9.0 | 1286 | 11.2 | 99 | 9.7 | 176 | 10.8 | 134 | 11.7 |
Birth Control Use | ||||||||||
Never | 13,814 | 76.2 | 8194 | 71.1 | 624 | 61.0 | 1134 | 69.5 | 832 | 72.9 |
Ever Hormone Use | ||||||||||
Never Estrogen | 17,151 | 94.6 | 10,941 | 94.9 | 949 | 92.8 | 1520 | 93.2 | 1052 | 92.1 |
Never Progesterone | 17,865 | 98.5 | 11,354 | 98.5 | 1004 | 98.1 | 1608 | 98.6 | 1111 | 97.3 |