Table 3. Location of involved lesions.
| Classification | Overall (n=1,257)* | PASI<10 (n=943) | PASI≥10 (n=314) |
|---|---|---|---|
| Scalp | 668 (53.1) | 453 (48.0) | 215 (68.5) |
| Face | 349 (27.8) | 218 (23.1) | 131 (41.7) |
| Neck | 205 (16.3) | 104 (11.0) | 101 (32.2) |
| Chest | 536 (42.6) | 334 (35.4) | 202 (64.3) |
| Abdomen | 700 (55.7) | 460 (48.8) | 240 (76.4) |
| Back | 766 (60.9) | 497 (52.7) | 269 (85.7) |
| Upper arm | 672 (53.5) | 425 (45.1) | 247 (78.7) |
| Elbow | 729 (58.0) | 484 (51.3) | 245 (78.0) |
| Lower arm | 714 (56.8) | 462 (49.0) | 252 (80.3) |
| Palm† | 164 (13.0) | 115 (12.2) | 49 (15.6) |
| Back of hand | 295 (23.5) | 178 (18.9) | 117 (37.3) |
| Nail | 155 (12.3) | 89 (9.4) | 66 (21.0) |
| Upper leg | 764 (60.8) | 499 (52.9) | 265 (84.4) |
| Knee | 718 (57.1) | 472 (50.1) | 246 (78.3) |
| Lower leg | 913 (72.6) | 620 (65.7) | 293 (93.3) |
| Foot sole† | 146 (11.6) | 103 (10.9) | 43 (13.7) |
| Back of foot | 217 (17.3) | 127 (13.5) | 90 (28.7) |
| Buttock | 471 (37.5) | 280 (29.7) | 191 (60.8) |
| Genitalia | 111 (8.8) | 59 (6.3) | 52 (16.6) |
| Other area† | 8 (0.6) | 4 (0.4) | 4 (1.3) |
Values are presented as number (%). PASI: psoriasis area and severity index. *3 patients are missing. †No significant p-value (other involved areas showed p-value<0.0001).