Table 2

Comparison of bone mass (T-scores) between patients with psoriatic arthritis (PsA) with and without erosions

All PsA patients (n=2212)PsA patients without erosions (n=889)PsA patients with erosions (n=567)p Value
Lumbar spine (T-score)
 Mean (SD)−0.33 (1.50)−0.11 (1.49)−0.61 (1.46)<0.01
 Median (IQR)−0.40 (−1.50 to 0.55)−0.24 (−1.23 to 0.72)−0.70 (−1.8 to 0.50)
Femoral neck (T-score)
 Mean−0.98 (1.19)−0.85 (1.17)−1.11 (1.46)0.09
 Median−1.11 (−1.75 to −0.2)−1.1 (−1.6 to −0.01)−1.2 (−2.0 to −0.4)
Total hip (T-score)
 Mean (SD)−0.42 (1.25)−0.22 (1.35)−0.57 (1.21)0.11
 Median (IQR)−0.6 (−1.4 to 0.42)−0.25 (−1.4 to 0.6)−0.7 (−1.36 to 0.22)