Table 1.
Characteristics | No psoriasis n = 32,191 (97.8%) |
Psoriasis n = 719 (2.2%) |
Age-adjusted odds ratiosb of psoriasis (95% CI) |
Multivariate-adjustedb,c odds ratios of psoriasis (95% CI) |
---|---|---|---|---|
Mean age at the start of follow-up ± SD (years) | 68.1 ± 3.2a | 67.8 ± 3.0a | 1.0 (0.9–1.0) | |
BMI categories in 1986 (kg/m2) (%)d | ||||
<24.9 | 39.5 | 41.3 | 1 | 1 |
25–30 | 37.3 | 33.4 | 0.9 (0.7–1.0) | 0.9 (0.7–1.1) |
≥30 | 23.2 | 25.3 | 1.0 (0.9–1.3) | 1.1 (0.9–1.4) |
p = 0.7 | p = 0.3 | |||
Education in 1986 (%)d | ||||
Less than high school | 19.6 | 17.9 | 1 | 1 |
High school | 42.2 | 38.2 | 1.0 (0.8–1.2) | 1.0 (0.8–1.3) |
More than high school | 38.1 | 43.9 | 1.3 (1.0–1.6) | 1.3 (1.0–1.6) |
p = 0.03 | p = 0.02 | |||
Smoking in 1986 (%)d | ||||
Never | 67.6 | 53.1 | 1 | 1 |
Former | 18.6 | 25.0 | 1.4 (1.1–1.8) | 1.4 (1.1–1.7) |
Current | 13.8 | 22.0 | 1.5 (1.1–2.0) | 1.5 (1.1–2.0) |
p = 0.004 | p = 0.006 | |||
Alcohol intake in 1986 (%)d | ||||
Never | 56.9 | 52.8 | 1 | 1 |
<4 g/day | 23.6 | 22.4 | 1.0 (0.9–1.2) | 1.0 (0.8–1.2) |
≥4 g/day | 19.5 | 24.8 | 1.4 (1.1–1.6) | 1.1 (0.9–1.4) |
p = 0.0007 | p = 0.3 | |||
Regular physical activity in 1986 (%) | ||||
No | 57.9 | 63.7 | 1 | 1 |
Yes | 42.1 | 36.3 | 0.8 (0.7–0.9) | 0.8 (0.7–1.0) |
History of HT use up to 2004 (%) | ||||
Never | 56.1 | 51.7 | 1 | 1 |
Ever | 43.9 | 48.3 | 1.2 (1.0–1.4) | 1.19 (1.0–1.4) |
Diabetes up to 2004 (%) | ||||
Never | 84.2 | 80.7 | 1 | 1 |
Ever | 15.8 | 19.3 | 1.4 (1.2–1.7) | 1.4 (1.2–1.7) |
Heart disease up to 2004 (%) | ||||
Never | 86.6 | 85.4 | 1 | 1 |
Ever | 13.4 | 14.6 | 1.2 (1.0–1.4) | 1.1 (1.0–1.3) |
Hypertension up to 2004 (%) | ||||
Never | 57.8 | 54.1 | 1 | 1 |
Ever | 42.2 | 45.9 | 1.3 (1.07–1.5) | 1.2 (1.1–1.5) |
Mean ± standard deviation
Prevalent odds ratio
Adjusted for age, education, smoking status, pack-years of smoking, alcohol, and BMI
These variables were adjusted for each other in multivariate-adjusted analyses