Table 3

Observed and expected number of fractures at primary osteoporotic sites, and sites adjacent to the joints most commonly affected early in RA in the Barwon Statistical Division
Rheumatoid arthritis (cases) Non-rheumatoid arthritis (controls) Chi-square test
Observed Expected Observed Expected χ2value p value
Primary osteoporotic sites
Vertebral 26 13.4 243 255.6 21.71 <0.001
Colles’ 6 10.8 211 206.2
Hip 6 16.3 321 310.7
Other 44 41.5 788 790.5
Sites adjacent to joints most commonly affected early in RA
Colles’/Carpal/Hand/Fingers 9 14.8 288 282.2 3.02 0.22
Foot/Toes 4 4.2 81 80.8
Other 69 63.0 1,194 1200

Brennan et al.

Brennan et al. BMC Musculoskeletal Disorders 2014 15:13   doi:10.1186/1471-2474-15-13

Open Data