Women (n = 142) | Men (n = 38) | P value* | |
---|---|---|---|
Body structure | |||
Radiographic CMCJ OA severity (0–4, 0 = no CMCJ OA), median (IQR) | 3 (3,4) | 3 (3,4) | .73 |
Presence of clinical CMCJ subluxation, n (%) | 89 (63) | 24 (63) | .88 |
Radiographic CMCJ subluxation ratio, mean (SD) | 0.50 (0.10) | 0.50 (0.08) | .76 |
Number of finger joints with clinical nodes (0–9 joints), median (IQR) | 0 (0,2) | 0 (0,0) | .01 |
Body function | |||
Pain at rest (0–10, 0 = no pain), median (IQR) | 3 (1,5) | 2 (1,4) | .31 |
Pain following measure of grip strength (0–10, 0 = no pain), median (IQR) | 3 (2,5) | 3 (1,5) | .72 |
Pain following measure of pinch strength (0–10, 0 = no pain), median (IQR) | 3 (2,5) | 4 (2,6) | .81 |
Max grip strength, Newton (N), median (IQR) | 145 (62) | 336 (95) | <.001 |
Max pinch strength, N, median (IQR) | 27 (11) | 50 (20) | <.001 |
Grip strength referred hand (% of normal grip strength), mean (SD) | 59 (23) | 83 (25) | <.001 |
Pinch strength referred hand (% of normal pinch strength), mean SD | 59 (24) | 69 (28) | .04 |
Number of painful finger joints (MCPJ, IP, PIPJ, DIPJ: 0–14 joints), median (IQR) | 3 (1,5) | 1 (0,2) | <.001 |
Flexion deficit 2nd-5th fingers, mm, median (IQR) | 0 (0,6) | 0 (0,0) | .62 |
Range of motion thumb IP, degrees, median (IQR) | 70 (61,78) | 68 (60,76) | .48 |
Range of motion MCP1, degrees, median (IQR) | 50 (42,59) | 50 (40,56) | .99 |
Palmar abduction thumb, degrees, median (IQR) | 48 (42,56) | 47 (38,55) | .45 |
Abduction CMCJ, degrees, median (IQR) | 36 (31,42) | 36 (30,44) | .94 |
Activity and participation | |||
Activity performance (1–4, 1 = no activity problems), mean (SD) | 2.0 (0.4) | 1.7 (0.4) | <.001 |
Function and symptoms arm, shoulder and hand (0–100, 0 = no disability), mean (SD) | 38.6 (16.4) | 30.4 (15.6) | .01 |