Table 2

Correlation coefficients between sum scores B-mode (BM) of the different joint combinations

BM 12-joint score

BM 28-joint score

BM 44-joint score

BM 78-joint score

BM 7-joint score

0.87/0.92

0.86/0.89

0.85/0.91

0.87/0.93

BM 12-joint score

0.84/0.93

0.86/0.96

0.87/0.96

BM 28-joint score

0.94/0.93

0.95/0.93

BM 44-joint score

0.97/0.99

Spearman's rank correlation coefficients between sum scores BM of the different joint combinations at baseline and at 12 months follow-up (in bold italics) (P < 0.001 for all the correlations).

Hammer and Kvien Arthritis Research & Therapy 2011 13:R78   doi:10.1186/ar3341