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Table 1 Baseline demographic data and Kellgren − Lawrence (KL) grades of the participants who were followed up and those who dropped out

From: Serum hyaluronic acid concentration predicts the progression of joint space narrowing in normal knees and established knee osteoarthritis – a five-year prospective cohort study

 

Dropped out (n = 270)

Followed up (n = 444)

Age, years

56.9 ± 14.4

55.4 ± 12.0*

Female, %

61.4

64.4

Body mass index, kg/m2

22.9 ± 3.2

23.0 ± 3.1

Serum HA, ng/ml

67.2 ± 48.2

64.7 ± 46.2

Smoking habit, %

18.3

17.5

Drinking habit, %

41.1

42.6

Fitness habits, %

22.3

31.6

KL grade 0/1, n

177

323

KL grade 2, n

67

91

KL grade 3, n

22

28

KL grade 4, n

4

2

  1. The values are baseline demographic data for the participants who dropped out and those who were followed up. Patients who underwent total knee arthroplasty during the 5 years are not included in this table. *P value <0.05 (considered statistically significant) for comparison of the two groups HA hyaluronic acid
  2. Data were mean ± SD
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Arthritis Research & Therapy

ISSN: 1478-6362

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