Table I.
Descriptive characteristics of the study population
| Characteristic | Patients with psoriasis (n = 68,836) | Controls (n = 68,836) | p-value |
|---|---|---|---|
| Age, years, mean ± SD | 42.5 ± 21.1 | 42.4 ± 21.2 | 0.380 |
| Median (range) | 40.3 (0.1–103.5) | 40.2 (0.1–101.7) | |
| Male sex, n (%) | 34,393 (50.0) | 34,393 (50.0) | 1.000 |
| Ethnicity, n (%) | |||
| Jews | 57,348 (83.3) | 57,358 (83.3) | 1.000 |
| Arabs | 11,488 (16.7) | 11,478 (16.7) | |
| Obesity, n (%) | 17,466 (25.4) | 14,630 (21.3) | < 0.001 |
| Smoking, n (%) | 25,746 (37.4) | 23,636 (34.3) | < 0.001 |
| Socioeconomic status, n (%) | |||
| Low | 24,002 (34.9) | 23,951 (34.8) | 0.697 |
| Intermediate | 27,860 (40.5) | 27,755 (40.3) | 0.449 |
| High | 16,736 (24.3) | 16,773 (24.4) | 0.665 |
| Charlson comorbidity score, mean ± SD | 1.41 ± 2.06 | 1.35 ±2.05 | < 0.001 |
| Charlson comorbidity score (without age), mean ± SD | 0.71 ± 1.27 | 0.66 ±1.29 | < 0.001 |
Bold represents significant value.
SD: standard deviation; BMI: body mass index.