Supplemental Table II.
Smoking in relation to psoriasis phenotypes and symptoms
| Psoriasis phenotype and symptoms | Smoking |
P value | |
|---|---|---|---|
| No | Yes | ||
| Itching | 1529 (82.7) | 559 (81.5) | .46 |
| Dryness | 681 (36.9) | 245 (35.7) | .60 |
| Tenderness | 374 (20.2) | 117 (17.1) | .07 |
| None | 184 (10.0) | 79 (11.5) | .25 |
| Plaque psoriasis | 1527 (82.6) | 605 (88.2) | .001 |
| Scalp psoriasis | 760 (41.1) | 311 (45.3) | .06 |
| Nail psoriasis | 238 (12.9) | 154 (22.4) | <.001 |
| Flexural | 216 (11.7) | 91 (13.3) | .28 |
| Guttate | 199 (10.8) | 62 (9.0) | .203 |
| Palmoplantar psoriasis | 159 (8.6) | 78 (11.4) | .03 |
| Erythrodermic psoriasis | 58 (3.1) | 37 (5.4) | .008 |
| Chronic palmoplantar pustulosis | 31 (1.7) | 15 (2.2) | .39 |
| Pustular | 38 (2.1) | 7 (1.0) | .08 |