From: Prevalence of risk factors for breast cancer in German airline cabin crew: a cross-sectional study
Risk factor | Study population (95% confidence interval) | General population* |
---|---|---|
Body height (cm) | 169.3 (169.0-169.6) | 166.3 |
Body mass index (kg/m2) | 21.8 (21.7-21.9) | 24.3 |
Duration of OC use (years) | 11.1 (10.7-11.5) | 9.1 |
Physical activity (h/week) | 3.9 (3.7-4.0) | 2.6 |
Alcohol consumption | ||
% consuming over 10 g/day | 41.9 | 14.5 |
Avg. daily consumption (g) | 10.6 (9.9-11.2) | 6.0 |
Smoking | ||
% of daily smokers | 12.6 | 28.1 |
Avg. cigarettes per day | 7.9 (7.0-8.7) | 12.7 |
Reproductive factors | ||
Nulliparity1 (%) | 57.1 (54.4-59.8) | 16.1 |
Age at first birth (years) | 32.1 (31.7-32.4) | 25.5 |
Birth rate (no. of children) | 0.62 (0.58-0.67) | 1.34 |