Table 1 Baseline characteristics of women according to history of rosacea (1991)
From: Personal history of rosacea and risk of incident cancer among women in the US
Rosacea | ||
|---|---|---|
Characteristics a | No ( n =74 024) | Yes ( n =1064) |
Mean age, years (s.d.) | 36.2 (4.7) | 37.6 (4.1) |
Height, m (s.d.) | 1.6 (0.1) | 1.7 (0.1) |
Body mass index, kg m−2 (s.d.) | 24.5 (5.3) | 25.0 (5.8) |
Body mass index at age 18, kg m−2 (s.d.) | 21.2 (3.3) | 21.2 (3.3) |
Alcohol consumption, g per week (s.d.) | 3.2 (6.2) | 2.9 (5.3) |
Physical activity, metabolic equivalent hours per week (s.d.) | 23.7 (60.2) | 21.3 (53.2) |
Multivitamin use, % | 46.0 | 46.5 |
Physical examination, % | 89.6 | 92.9 |
Current smoker, % | 11.5 | 8.6 |
History of benign breast disease, % | 34.6 | 39.7 |
Family history of breast cancer, % | 6.0 | 6.5 |
Current oral contraceptive use, % | 10.4 | 9.5 |
Postmenopausal women, % | 7.2 | 8.3 |
Age at menarche, years (s.d.) | 13.4 (1.4) | 13.4 (1.4) |
Age at first birth, years (s.d.) | 25.8 (4.1) | 26.0 (3.9) |
Parity among parous women, times (s.d.) | 1.6 (1.2) | 1.5 (1.2) |
Red or blonde hair colour, % | 20.3 | 22.9 |
Five or more severe sunburns at ages 15–20 years, % | 10.0 | 13.9 |
Childhood tendency to sunburns, % | 48.1 | 55.3 |
Three or more moles on lower legs, % | 32.4 | 36.0 |
Family history of melanoma, % | 4.4 | 5.3 |
UV index of residence ⩾7 | ||
At birth | 18.9 | 20.6 |
At age 15 years | 19.1 | 19.9 |
At age 30 years | 25.4 | 25.8 |
Sun exposure ⩾5 h per week | ||
College/high school | 60.9 | 58.3 |
Age 25–35 years | 50.9 | 48.9 |
Personal history of severe teenage acne, % | 8.1 | 12.5 |
Antibiotics use for treatment of acne or rosacea, % | 6.9 | 41.0 |
Tetracycline use, % | 1.7 | 6.8 |
Isotretinoin use, % | 1.9 | 5.0 |
