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Table 2 sHA reference intervals 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
sHA Mean 33.0 34.8 42.0 57.4
(ng/ml) (SD) (2.1) (2.1) (2.0) (2.1)
  Reference interval 26.5 - 41.1 29.7 - 40.8 36.0 - 48.9 49.6 - 66.5
  1. Data indicates mean (SD). 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. K/L: Kellegren Laurence grade.