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Table 5 Univariate and multivariate analysis for association of osteoarthritis (OA) progression [defined by joint space narrowing (JSN)] with serum ferritin (dichotomized at third quintile)

From: Age-dependent ferritin elevations and HFE C282Y mutation as risk factors for symptomatic knee osteoarthritis in males: a longitudinal cohort study

OA progression variable Odds ratio* Adjusted Odds ratio**
[95% CI; P value] [95% CI; P value]
All ( N= 120)   
JSN (mm)   
≤ 0.5 (N = 82) 0.42 0.32**
> 0.5 (N = 38) [CI: 0.15–1.023; P = 0.046] [CI: 0.12–0.81; P = 0.0170]
Female ( N= 76)   
JSN (mm)   
≤ 0.5 (N = 53) 0.076 0.07***
> 0.5 (N = 23) [CI: 0.001–0.55; P = 0.002 [CI: 0.009–0.63; P = 0.016]
Male ( N= 44)   
JSN (mm)   
≤ 0.5 (N = 29) 0.91 0.79***
> 0.5 (N = 15) [CI: 0.21–4.06; P = 1.0] [CI: 0.21–3.02; P = 0.74]
  1. *Univariate logistic regression
  2. **Multivariate logistic regression adjusted for body mass index (BMI), age, sex.
  3. ***Multivariate logistic regression adjusted for body mass index (BMI), age.