Table 3 Frequency of individual joint involvement during the course of the disease
From: Juvenile Psoriatic Arthritis (JPsA): juvenile arthritis with psoriasis?
ERA N=16 | Persistent oligoarticular course N=44 | Extended oligoarticular course N=21 | RF- polyarticular N=34 | Polyarticular course N=55 | Total cohort N=115 | P value | |
|---|---|---|---|---|---|---|---|
Knee* | 12 (75.0) | 34 (77.2) | 18 (85.7) | 26 (76.4) | 44(80) | 90 (78.3) | 0.8 |
Ankle | 9 (56.0) | 20 (45.0) | 16 (76.2) | 21 (62.0) | 37(67) | 66 (57.4) | 0.1 |
Subtalar | 4 (25.0) | 4 (9.0) | 9 (26.5) | 7 (33.0) | 16(29) | 24 (20.1) | 0.09 |
Hip | 7 (43.7) | 6 (13.6) | 4 (19.0) | 5 (14.7) | 9(16.3) | 22 (19.1) | 0.05 |
Shoulder | 2 (12.5) | 2 (4.5) | 3 (14.3) | 8 (23.5) | 11(0.2) | 15(13.0) | 0.1 |
Elbow | 2 (12.5) | 6 (13.6) | 9 (43.0) | 19 (56.0) | 28(50.9) | 36 (31.0) | 0.0002 |
Wrist | 3 (18.7) | 13 (29.5) | 13 (61.9) | 23 (67.6) | 36(65.4) | 52 (45.2) | 0.0004 |
MCP | 3 (18.7) | 5 (11.4) | 9 (42.9) | 21 (61.7) | 30(54.5) | 38 (33.0) | <0.0001 |
PIP of Hand | 5 (31.0) | 7 (15.9) | 12 (42.8) | 26 (76.5) | 38(69) | 51 (43.5) | <0.0001 |
DIP of Hand | 3 (18.7) | 3 (6.8) | 5 (23.8) | 10 (29.4) | 15(27.2) | 21 (18.3) | 0.07 |
TMJ | 1 (6.2) | 5 (11.4) | 7 (33.3) | 10 (29.4) | 17(30.9) | 23 (20.0) | 0.04 |
Cervical spine | 0 (0) | 4 (9.0) | 3 (14.3) | 5 (14.7) | 8(14.5) | 12 (10.3) | 0.4 |
Sacroiliac | 7 (43.7) | 3 (6.8) | 1 (5.0) | 2 (6.0) | 3(5.4) | 13 (11.3) | 0.0002 |
Any small joint ** | 7 (43.7) | 12 (27.2) | 3 (14.3) | 4 (11.8) | 48(87.3) | 67 (58.0) | <0.0001 |