Table 2

Adjusted2-150 odds ratio (with 95% confidence interval (CI)) of rheumatoid factor (RF) positivity (sensitised sheep cell agglutination titre ⩾128) for different factors

  • 2-150 All variables in the table were included in the logistic regression model.

  • 2-151 Likelihood ratio test for linear trend (continuous variables) or for heterogeneity (groups of categorised variables).

  • 2-152 LDL cholesterol = low density lipoprotein cholesterol.