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Table 3 Multivariate analysis (Logistic Regression) considering the following variables: age, gender, body mass index and polymorphism of TNFA gene with the prevalence of osteoarthritis in elderly

From: Functional status and severity of osteoarthritis in elderly is associated to the polymorphism of TNFA gene

Variables Univariate analysis Multivariate analysis
Unadjusted Odds ratio CI (95%) p Adjusted Odds ratio CI (95%) p
Age Range
 60–70 years old 1 1
  > 70 years old 1.03 0.21
Gender
 Male 1 1   
 Female 2.75 1.55–4.89 0.001 2.67 1.48–4.8 0.001*
Body Mass Index
 Normal 1 1
 Overweight/Obesity 1.28 0.77–2.20 0.35
Polymorphism of TNFA
 GG 1   1 0.02*
 AA+GA 1.86 1.1–3.1 0.02 1.87 1.1–3.2  
  1. *Statistically significant at the final model