Figure 1.

Prevalence of prescriptions for HRT and other medications according to screening attendance and participation in the Million Women Study. Horizontal bars indicate 95% confidence intervals. ^*A prescription for HRT within the past six months is considered current use of HRT; a prescription for HRT on the prescription record but no prescription within the past six months is considered past use of HRT. ^†Any prescription within the past six months for medications for conditions listed here.