Fig. 4

Risk ratios for associations between highest educational level (degree educated as reference category) and SARS-CoV-2. Model 1: age, sex and assessment centre. Model 2: model 1 + ethnicity + country of birth. Model 3: model 2 + social variables (healthcare worker, urbanicity, number of people per household, deprivation, tenure status, employment status, manual work). Model 4: model 3 + health status variables (self-rated health, number of chronic conditions and longstanding illness) + behavioural risk factors (smoking, alcohol consumption and BMI). Coefficient for the other groups are not shown