The Increasing Level of DKK-1 as a New Bone Formation Factor in Patients with Early Spondyloarthritis

Table 4

Correlation between DKK-1 levels and patients’ clinical parameters.

Correlation parameters tested with serum DKK-1 level	r
Age	0.020	0.914
BMI	0.163	0.380
Duration	−0.370	0.040
ESR	0.027	0.887
CRP	−0.064	0.731
ASDAS-ESR	−0.0004	0.998
ASDAS-CRP	−0.044	0.814
mSASSS	−0.110	0.626
BMD at the lumbar spine	0.103	0.649
BMD at the femoral neck	0.290	0.190
BMD at the total hip	0.467	0.028

DKK-1: dickkopf-related protein 1, BMI: body mass index, ESR: erythrocyte sedimentation rate, CRP: C-reactive protein, ASDAS: ankylosing spondylitis disease activity score, BMD: bone mineral density, and mSASSS: modified stoke ankylosing spondylitis spinal score; indicates a significant value ().