Table IV.
Comparison between male and female psoriasis patients according to demographic and clinical characteristics (n = 2534)
| Variables | Sex |
P value | |
|---|---|---|---|
| Women (n = 1107) | Men (n = 1427) | ||
| Age at disease onset (mean ± SD), y∗ | 28.1 ± 17.1 | 32.7 ± 16.9 | <.001 |
| Positive family history of psoriasis | 191 (17.3) | 252 (17.7) | .79 |
| Smoking | 38 (3.4) | 648 (45.4) | <.001 |
| Symptoms | |||
| Itching | 933 (84.3) | 1155 (8.9) | .03 |
| Dryness | 415 (37.5) | 511 (35.8) | .38 |
| Skin pain and tenderness | 243 (22.0) | 248 (17.4) | .004 |
| None | 99 (8.9) | 164 (11.5) | .04 |
| Phenotype of psoriasis† | |||
| Plaque | 895 (80.8) | 1237 (86.7) | <.001 |
| Guttate | 126 (11.4) | 135 (9.5) | .11 |
| Erythrodermic | 30 (2.7) | 65 (4.6) | .02 |
| Chronic palmoplantar pustulosis | 15 (1.4) | 31 (2.2) | .13 |
| Generalized pustular | 26 (2.3) | 19 (1.3) | .05 |
| Precipitating factors∗ | |||
| Stress | 466 (42.1) | 555 (38.9) | .10 |
| Cold | 455 (41.1) | 551 (38.6) | .20 |
| None | 268 (24.2) | 402 (28.2) | .03 |
| Sun | 157 (14.2) | 243 (17.0) | .05 |
| Infection | 52 (4.7) | 64 (4.5) | .81 |
| Drugs | 32 (2.9) | 33 (2.3) | .36 |
| Trauma | 1 (0.1) | 4 (0.3) | .29 |
| Food | 2 (0.2) | 2 (0.1) | >.99 |
Data are presented as No. (%) unless otherwise indicated. P ≤ .05 was considered statistically significant. The analysis was conducted by χ2 test.
SD, Standard deviation.
∗
Analysis conducted by independent t test.
†
Patients may present by multiple phenotypes simultaneously.