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Table 1 Characteristics of participants (split by median level of interleukin 17)

From: Serum levels of interleukin-17 and adiponectin are associated with infrapatellar fat pad volume and signal intensity alteration in patients with knee osteoarthritis

 

Total (n = 170)

IL-17 ≤ median (n = 85)

IL-17 > median (n = 85)

p Values

Age, yearsa

55.45 (8.25)

54.07 (8.17)

56.66 (8.39)

0.044

Female sex, %b

88.2

89

87

0.634

Height, cma

159.00 (6.89)

159.09 (7.01)

158.58 (6.88)

0.638

Weight, kga

64.83 (10.56)

64.23 (9.62)

65.09 (10.70)

0.591

BMI, kg/m2a

25.64 (3.85)

25.35 (3.20)

25.87 (3.88)

0.341

K-L grade, %b

   

0.268

 1

27.9

25.7

28.6

 

 2

41.9

50.0

35.1

 

 3

25.7

20.3

31.2

 

 4

4.5

4.1

5.2

 

Knee ROA, %b

72.1

74.3

71.4

0.689

IPFP signal intensity alteration, %b

43.1

44.2

40

0.298

IPFP volume, mm3a

20.46 (5.01)

20.57 (5.53)

20.42 (4.88)

0.855

Adiponectin, pg/mlc

18.67 (3.94–53.07)

35.08 (11.36–71.26)

12.82 (3.00–46.94)

0.001

Resistin, ng/mlc

2.37 (1.40–5.57)

2.18 (1.45–4.86)

2.81 (1.32–5.78)

0.532

  1. Abbreviations: BMI body mass index, K-L Kellgren-Lawrence, IL interleukin, ROA radiographic osteoarthritis, IPFP infrapatellar fat pad
  2. ROA was defined as a K-L grade ≥2. IL-17 median level 2.00 pg/ml (interquartile range 1.56–2.82). Data in bold denote statistically significant results
  3. a t tests were used for mean (SD)
  4. bχ2 tests were used for the proportions
  5. cMann-Whitney U tests were used for median (interquartile range)