Table 2

Characteristics and serum FSTL1 levels in the subjects investigateda.

HC

OA

Male HC

Male OA

Female HC

Female OA


Number

63

168

29

48

34

120

Age (years)b

37 (29-47)

62 (54-69)

35 (31-43)

61 (54-72)

39 (29-52)

62 (54-69)

Disease duration (years)b

-

1.0 (0.3-3.9)

-

0.5 (0.2-3.0)

-

1.0 (0.5-5.0)

FSTL1 levels (μg/L)b

2.93

19.03

2.50

5.64

3.32

24.40

(2.35-3.69)

(7.41-27.98)

(2.17-2.96)

(3.81-8.75)

(2.43-8.67)

(15.65-31.17)


aIncluded all subjects for whom serum samples were available. bExpressed as the median (25th to 75th percentile). FSTL1: follistatin-like protein 1; HC: healthy control individual; OA: osteoarthritis.

Wang et al. Arthritis Research & Therapy 2011 13:R193   doi:10.1186/ar3522

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