Comparison of demographic and disease activity/severity variables between patients with and without osteoporosis. Means for continuous variables, % for counts
| Spine L2–4 | Total hip | Femoral neck | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| T⩽−2.5 (n=66) | T>−2.5 (n=327) | p Value | T⩽−2.5 (n=56) | T>−2.5 (n=324) | p Value | T⩽−2.5 (n=56) | T>−2.5 (n=324) | p Value | |||
| Age (years) | 62.8 | 53.2 | <0.001 | 63.9 | 53.0 | <0.001 | 63.7 | 53.1 | <0.001 | ||
| Disease duration (years) | 15.9 | 12.3 | 0.007 | 16.9 | 11.8 | <0.001 | 16.0 | 11.9 | 0.005 | ||
| Body mass index | 22.9 | 24.2 | 0.006 | 22.5 | 24.2 | 0.002 | 22.7 | 24.2 | 0.005 | ||
| Number of swollen joints | 9.92 | 7.44 | 0.01 | 11.19 | 7.16 | <0.001 | 11.46 | 7.11 | <0.001 | ||
| Number of deformed joints | 4.16 | 1.77 | <0.001 | 4.89 | 1.49 | <0.001 | 4.63 | 1.54 | <0.001 | ||
| CRP2-150(mg/l) | 18.0 | 15.8 | 0.17 | 20.9 | 14.7 | 0.001 | 19.9 | 14.9 | 0.005 | ||
| ESR2-150 (mm/1st h) | 24.7 | 21.1 | 0.16 | 26.6 | 20.1 | 0.008 | 26.5 | 20.1 | 0.01 | ||
| MHAQ2-150 | 1.74 | 1.59 | 0.06 | 1.81 | 1.56 | 0.002 | 1.74 | 1.57 | 0.02 | ||
| DAS2-150 | 4.88 | 4.42 | 0.02 | 5.08 | 4.37 | 0.001 | 5.05 | 4.37 | 0.001 | ||
| Current use of corticosteroids (%) | 66.1 | 35.3 | <0.001 | 64.8 | 35.2 | <0.001 | 66.7 | 34.9 | <0.001 | ||
| Ever use of corticosteroids (%) | 80.6 | 60.3 | 0.002 | 85.2 | 58.7 | <0.001 | 83.3 | 59.0 | 0.001 | ||
| Rheumatoid factor positive (%) | 58.3 | 50.6 | 0.32 | 68.6 | 48.9 | 0.01 | 67.3 | 49.0 | 0.02 | ||
| Non-vertebral fracture (%) | 33.9 | 18.6 | 0.007 | 37.0 | 17.3 | 0.001 | 44.4 | 16.0 | <0.001 | ||
↵2-150 CRP = C reactive protein; ESR = erythrocyte sedimentation rate; MHAQ = Modified Health Assessment Questionnaire; DAS = disease activity score.