Table 2.
Diagnoses given in claims for patients with psoriasis and PPP in the JNDB
| Diagnoses | N* | (%) | Male | (%) | Age | (SD) |
|---|---|---|---|---|---|---|
| Psoriasis | ||||||
| Plaque psoriasis | 418 705 | (97.4) | 248 770 | (59.4) | 56.7 | (18.7) |
| Scalp psoriasis | 2832 | (0.7) | 1682 | (59.4) | 57.2 | (18.1) |
| Guttate psoriasis | 2572 | (0.6) | 1136 | (44.2) | 42.4 | (20.6) |
| Psoriatic arthritis | 8360 | (1.9) | 4431 | (53.0) | 55.5 | (15.1) |
| Pustular psoriasis | 4636 | (1.1) | 2250 | (48.5) | 55.9 | (19.3) |
| Erythrodermic psoriasis | 1610 | (0.4) | 1176 | (73.0) | 60.4 | (17.2) |
| PPP† | 12 625 | (2.9) | 4675 | (37.0) | 58.3 | (13.7) |
| PAO† | 401 | (0.1) | 85 | (21.2) | 53.1 | (12.1) |
| Total | 429 679 | (100) | 253 773 | (59.1) | 56.7 | (18.7) |
| PPP | ||||||
| PPP | 135 647 | (99.6) | 47 063 | (34.7) | 55.5 | (15.5) |
| PAO | 5734 | (4.2) | 1307 | (22.8) | 52.1 | (12.6) |
| Total | 136 224 | (100) | 47 248 | (34.7) | 55.5 | (15.5) |
*Each patient is counted once for each diagnosis, so the sums of patients with eight diagnoses for psoriasis and two diagnoses for PPP exceed the total.
†Patients with psoriasis and PPP/PAO diagnosis codes.
JNDB, Japanese national database of health insurance claims; PAO, pustulotic arthro-osteitis; PPP, palmoplantar pustulosis.