Table 2 |
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|
Factor loadings* for each radiographic variable in the four-factor solution after oblique rotation |
||||
|
rOA Variable |
Factor |
|||
|
IP/CMC |
MCP |
Knee |
Spine |
|
|
|
||||
|
L 1st IP |
0.512 |
|||
|
R 1st IP |
0.550 |
|||
|
L CMC 1 |
0.442 |
|||
|
R CMC 1 |
0.429 |
|||
|
L 2nd DIP |
0.833 |
|||
|
L 3rd DIP |
0.840 |
|||
|
L 4th DIP |
0.814 |
|||
|
L 5th DIP |
0.786 |
|||
|
R 2nd DIP |
0.796 |
|||
|
R 3rd DIP |
0.797 |
|||
|
R 4th DIP |
0.815 |
|||
|
R 5th DIP |
0.786 |
|||
|
L 2nd PIP |
0.682 |
|||
|
L 3rd PIP |
0.707 |
|||
|
L 4th PIP |
0.711 |
|||
|
L 5th PIP |
0.669 |
|||
|
R 2nd PIP |
0.685 |
|||
|
R 3rd PIP |
0.694 |
|||
|
R 4th PIP |
0.749 |
|||
|
R 5th PIP |
0.636 |
|||
|
L 2nd MCP |
0.595 |
|||
|
L 3rd MCP |
0.649 |
|||
|
L 4th MCP |
0.614 |
|||
|
L 5th MCP |
0.605 |
|||
|
R 2nd MCP |
0.551 |
|||
|
R 3rd MCP |
0.589 |
|||
|
R 4th MCP |
0.671 |
|||
|
R 5th MCP |
0.602 |
|||
|
Right TFJ |
0.699 |
|||
|
Left TFJ |
0.746 |
|||
|
Right PFJ avg† |
0.829 |
|||
|
Left PFJ avg† |
0.856 |
|||
|
L1/2 DN |
0.555 |
|||
|
L2/3 DN |
0.697 |
|||
|
L3/4 DN |
0.622 |
|||
|
L4/5 DN |
0.474 |
|||
|
L5/S1 DN |
0.427 |
|||
|
L1/2 OST |
0.560 |
|||
|
L2/3 OST |
0.652 |
|||
|
L3/4 OST |
0.568 |
|||
|
L4/5 OST |
0.416 |
|||
|
L5/S1 OST |
0.384 |
|||
|
|
||||
|
*Only loadings > 0.2 are shown †PFJ presented for simplicity as average osteophytes across four surfaces (lateral femoral, lateral patellar, medial femoral, medial patellar), nearly identical loadings are obtained for individual surface scores. CMC, carpometacarpal joint; DIP, distal interphalangeal joint; DN, disc narrowing; IP, interphalangeal joint; MCP, metacarpophalangeal joint; OST, osteophytes; PFJ, patellofemoral joint; PIP, proximal interphalangeal joint; rOA, radiographic osteoarthritis; TFJ, tibiofemoral joint. |
||||
|
Nelson et al. Arthritis Research & Therapy 2011 13:R176 doi:10.1186/ar3501 |
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