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Table 1 Patient Demographics

From: Associations between proinflammatory cytokines in the synovial fluid and radiographic grading and pain-related scores in 47 consecutive patients with osteoarthritis of the knee

  Gender Disease duration
(months)**
Total
  Male Female   
No. of Patients 22 (21) 28 (26)   50 (47)
Average age (years) 69.6 ± 7.3 69.8 ± 11.3   70.0 ± 2.1
KL grading     
1 6 4 4.83 ± 2.0 10
2 6 9 14.8 ± 8.9 15
3 5 8 33.9 ± 18.6 13
4 5 (4)* 7 (5)* 45.3 ± 21.4 12 (9)*
  1. *No fluid was obtained from 3 patients (1 man and 2 women), and thus, the numbers in parenthesis indicate the effective numbers for the present study.
  2. **Described as mean ± SEM