Characteristics | Non-users | Light users | Moderate users | Frequent users | Heavy users |
---|---|---|---|---|---|
n | 1840 | 36,598 | 25,718 | 34,203 | 2077 |
% skin creamed per day | 0–0.001 | 0.002- < 35.0 | 35.0- < 65.0 | 65.0- < 115.0 | 115.0–200 |
Incident cases of breast cancer (n) | 65 | 1176 | 801 | 1088 | 58 |
Breast cancer subtype, % b | |||||
ER+ | 83.1 | 83.8 | 85.3 | 84.1 | 84.5 |
ER- | 15.4 | 13.9 | 12.1 | 12.9 | 15.5 |
Incident cases of endometrial cancer (n) | 15 | 261 | 141 | 216 | 9 |
Age at enrollment (years), mean ± SD | 54.8 ± 5.0 | 54.3 ± 4.8 | 54.9 ± 4.8 | 54.8 ± 4.8 | 54.8 ± 4.8 |
Education (years), % | |||||
< 10 | 27.2 | 15.9 | 17.0 | 15.4 | 15.1 |
10–12 | 30.4 | 32.1 | 36.4 | 36.1 | 34.8 |
> 12 | 42.4 | 51.9 | 46.5 | 48.5 | 50.1 |
BMI, % | Â | Â | Â | Â | Â |
Under−/Normal weight | 36.6 | 50.7 | 56.7 | 60.5 | 66.4 |
Overweight | 33.4 | 34.8 | 32.7 | 30.7 | 25.7 |
Obese | 30.0 | 14.5 | 10.6 | 8.8 | 7.9 |
Menopausal status at enrollment, % | |||||
Pre | 14.2 | 15.7 | 13.0 | 13.4 | 13.4 |
Peri | 9.2 | 10.3 | 9.5 | 9.4 | 8.9 |
Post | 72.4 | 68.6 | 72.2 | 71.5 | 72.1 |
Unknown | 4.2 | 5.4 | 5.2 | 5.7 | 5.6 |
Age at menarche, mean ± SD | 13.2 ± 1.5 | 13.3 ± 1.4 | 13.3 ± 1.4 | 13.2 ± 1.4 | 13.2 ± 1.5 |
Age at first full term pregnancy, mean ± SD | 23.9 ± 4.6 | 24.4 ± 4.7 | 24.0 ± 4.4 | 24.0 ± 4.4 | 23.9 ± 4.4 |
Parity, % | |||||
0 | 10.3 | 10.2 | 9.3 | 9.2 | 10.4 |
1–2 | 47.3 | 53.3 | 56.7 | 59.4 | 58.3 |
≥3 | 42.4 | 36.6 | 33.9 | 31.4 | 31.3 |
OC use, % | |||||
Never | 48.2 | 40.3 | 38.1 | 36.0 | 36.4 |
Former | 51.3 | 59.2 | 61.4 | 63.4 | 62.8 |
Current | 0.5 | 0.5 | 0.5 | 0.6 | 0.8 |
MHT use, % | |||||
Never | 69.7 | 63.7 | 56.7 | 53.7 | 50.8 |
Former | 21.4 | 23.5 | 27.4 | 27.2 | 27.3 |
Current | 8.9 | 12.8 | 16.0 | 19.0 | 21.8 |
IUD use, % | |||||
Ever | 7.7 | 11.6 | 11.9 | 12.2 | 12.7 |
Smoking, % | |||||
Never | 37.4 | 36.0 | 32.4 | 31.0 | 31.6 |
Former | 30.9 | 40.8 | 43.9 | 45.4 | 43.6 |
Current | 31.7 | 23.2 | 23.7 | 23.6 | 24.8 |
Physical activity, % | |||||
Low | 37.6 | 24.8 | 19.8 | 16.5 | 14.6 |
Moderate | 34.8 | 41.8 | 42.4 | 38.9 | 32.6 |
High | 27.6 | 33.4 | 37.8 | 44.6 | 52.8 |
Alcohol intake (g/day), mean ± SD | 2.7 ± 4.2 | 3.7 ± 4.3) | 4.1 ± 4.2 | 4.4 ± 4.3 | 4.2 ± 4.4 |