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Table 1 Logarithmically transformed sHA (lnHA) levels of female patients with knee OA corresponding to the K/L grade

From: Reference intervals of serum hyaluronic acid corresponding to the radiographic severity of knee osteoarthritis in women

K/L 1 2 3 4 p for trend
LnHA 3.50 (0.11, 3.28-3.72) 3.55 (0.08, 3.39-3.71) 3.74 (0.08, 3.58-3.89) 4.05 (0.08, 3.90-4.20) <0.001
   * p=1.00 (−0.41 to 0.30) * p=0.47 (−0.60 to 0.12) * p<0.001 (−0.92 to −0.19)  
    ¶p=0.60 (−0.49 to 0.11) ¶p<0.001 (−0.80 to −0.20)  
    p<0.05 (−0.60 to −0.03)  
  1. All analyses were adjusted for age and body mass index (BMI). Covariates appearing in the model are evaluated at the following values; age = 69.1, BMI = 24.5. A p value less than 0.05 was considered to be significant. Data indicates mean (SD, 95%CI) and p (95%CI for differences). K/L: Kellegren and Laurence grade. *: vs. K/L 1, ¶: vs. K/L 2, †: vs. K/L 3.