Table 1. Clinical and laboratory characteristics of the patients and controls

AS patients (n=55)Controls (n=33)P value
IL-6 (pg/mL)18.5 (5-5458.1(4-69)0.0001
IFNo(pg/ml)0.002 (0.002-1.956)0.002 (0.002-0.956)0.5
BAP (U/L)29 (13-107)26 (2-51)0.1
Calcium (mg/dl)10 (9-11)9.9 (9,3-11)0.6
Phosphor (mg/dl)1.3 (1.7-4.7)3.4 (2,2-4,5)0.9
Vitamin D (nM)87 (4-266)102 (10-303)0.5
NTX (nM BCE)82 (52-188)84 (57-106)0.3
TRAP(U/L)3.76 (2.25-6.55)3.66 (2.31-8.34)0.3
PTH (pg/mL)45 (44-170)77 (45-180)0.01
RANKL (pmol/L)284 (101-1598)292 (143-783)0.7
OPG (pg/mL)339 (52-1118)527(16-1030)0.02
Sklerostin (pmol/L)73 (48-126)77.1 (49-110)0.1
sFrp1 (ng/ml)0.1 (0-17)0.2 (0-1)0.3
DKK1(pg/mL)97 (17-771)115 (29-278)0.6