Figure 2.

Adjusted odds ratio (OR) for association between dosage of last statin prescription and herpes zoster, stratified by time since last statin prescription. The reference category for all estimations is patients who have never been prescribed a statin. All ORs are adjusted for body mass index category, smoking status, alcohol use, cardiovascular disease, lymphoma, leukaemia, myeloma, haematopoietic stem cell transplantation, other immunosuppressive therapy, other unspecified cellular immune deficiencies, oral corticosteroids, rheumatoid arthritis, systemic lupus erythematosus, chronic obstructive pulmonary disease, asthma, chronic kidney disease, depression, cancer and diabetes. *Upper confidence interval (CI) = 2·01. **Lower CI = 0·30.