Patients (n=80) Control (n=90) p
25 (OH) D3 19.9 ± 4.5          32.97 ± 13.3 < 0.001
LANSS 16.5 ± 0.4 2.5 ± 0.2 < 0.001
FIQ total 56.6 ± 19.9    
The mean number of tender point 12.4 ± 4.5    
Lumbar BMD (g/cm2) 94.7 ± 3.2 103.9 ± 2.8 0.04
Femoral total BMD (g/cm2) 98.9 ± 2.5 108.0 ± 2.2 0.01
PTH (pg/ml) 72.7 ± 5.2 74.4 ± 2.5 0.2
ALP (IU/l) 92.2 ± 4.2 92.3 ± 3.4 0.2
CTx (ng/ml) 17.5 ± 21.6 16.4 ± 13.9 0.2
Table 1: Clinical parameters in patients and controls