Table 1 Frequencies (%) of multiple joint osteoarthritis (MJOA) in the Johnston County OA Project cohort
Definition(n = 1677)a | Frequency, n (%) | |
|---|---|---|
rOA | sxOA | |
MJOA-1: > 1 IP node and > 2 other sites (hip, knee, spine) | 648 (39) | 433 (26) |
MJOA-2: > 2 IP, > 1 CMC, and knee or hip | 363 (22) | 225 (13) |
MJOA-3: > 5 sites (DIP, PIP, CMC, hip, knee, spine) | 693 (41) | 426 (25) |
MJOA-4: > 2 lower body joint sites (hip, knee, spine) | 831 (49) | 499 (30) |