Table 2

 Pattern of radiographic osteoarthritis of the hand joint groups of the right hand (n = 3906)

Right hand
PIPMCPCMC1/TSAny other joint group
Values are odds ratios and 95% confidence intervals adjusted for age and sex.
CMC1/TS, first carpometacarpal and trapezioscaphoid joint (base of thumb); DIP, distal interphalangeal joint; MCP, metacarpophalangeal joint; PIP, proximal interphalangeal joint.
DIP 9.1 (7.1 to 11.7)3.9 (2.9 to 5.5)2.9 (2.5 to 3.4)4.4 (3.7 to 5.0)
PIP 4.7 (3.5 to 6.4)2.8 (2.3 to 3.5)9.1 (6.8 to 12.4)
MCP 3.8 (2.9 to 5.2)5.4 (3.6 to 8.0)
CMC1/TS 3.1 (2.6 to 3.6)