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Table 2 Comparison of clinical variables, bone and body composition densitometric data in patients with AS and a healthy control group

From: Is there a relation between pre-sarcopenia, sarcopenia, cachexia and osteoporosis in patients with ankylosing spondylitis?

  AS patients N = 67 Controls N = 67 P
Age (yrs): m (SD) 40.7 (11.0) 40.9 (11.0) NS
Height (m): m (SD) 1.72 (0.08) 1.74 (0.08) NS
Weight (kg): m (SD) 72.4 (13.2) 77.0 (12.0) NS
BMI (kg/m2): m (SD) 25.3 (4.0) 24.1 (3.4) NS
Fat-free mass (kg): m (SD) 49.2 (6.3) 52.0 (6.3) 0.014
Fat-free mass index (kg/m2): m (SD) 16.3 (2.0) 17.2 (1.9) 0.007
Fat mass (kg): m (SD) 21.2 (10.5) 22.8 (9.7) NS
Fat mass index (kg/m2): m (SD) 6.9 (3.1) 7.5 (3.7) NS
Appendicular mass (kg): m (SD) 22.2 (3.0) 23.4 (3.3) 0.033
Appendicular mass index (kg/m2): m (SD) 7.4 (0.8) 7.7 (0.9) NS
Lumbar spine BMD (g/cm2): m (SD) 1.19 (0.1) 1.12 (0.1) 0.023
Lumbar spine T-score: m (SD) −0.64 (2.5) −0.10 (2.5) 0.019
Total hip BMD (g/cm2): m (SD) 0.97 (0.1) 1.08 (0.1) <0.0001
Total hip T-score: m (SD) −0.56 (1.3) 0.42 (1.1) <0.0001
Osteoporosis any site: n (%) 13 (19.4 %) 2 (3.0) 0.002
Pre-sarcopenia: n (%) 33 (49.3) 19 (28.4) <0.01
  1. BMI body mass index, SASSS Stoke Ankylosing Spondylitis Spinal Score