Comorbid disease associated with educational attainment.

The table shows the odds ratio for the presence of comorbid disease in patients with MDD. Odds ratios were calculated from a comparison between greater than primary school level education and only primary school or no education. An odds ratio greater than one means there is an increased risk of a comorbid anxiety disorder in individuals who have had more than primary school education. GAD is generalized anxiety disorder. CI is confidence interval.