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Table 1 Characteristics and SF FSTL1 levels in the subjects investigateda

From: Follistatin-like protein 1: a serum biochemical marker reflecting the severity of joint damage in patients with osteoarthritis

  Con OA RA Male OA Female OA
Number 6 42 16 11 31
Age (years)b 32 (30-49) 67 (60-72) 61 (54-70) 70 (55-75) 67 (60-72)
Sex (M/F) 4/2 11/31 2/14 - -
Disease duration (years)b - 1.0 (0.5-3.0) 2.0 (0.5-4.5) 0.9 (0.2-2.8) 1.0 (0.5-6.0)
FSTL1 levels (μg/L)b 6.80 15.66 39.80 11.65 16.54
  (6.02-7.32) (12.04-19.80) (22.74-273.80) (8.57-13.50) (14.09-27.53)
  1. aIncluded all subjects for whom SF samples were available and part of subjects for whom tissue samples were available. bExpressed as the median (25th to 75th percentile). Con, control trauma patients; FSTL1, follistatin-like protein 1; OA, osteoarthritis; RA, rheumatoid arthritis.