Fig 2. ORs and 95% CIs for breast cancer in women aged <50 years whose last hormonal contraceptive prescription was an oral contraceptive versus women with no prescriptions for hormonal contraceptives, by time since last prescription and oral contraceptive type.

Data from the CPRD. Adjusted ORs are adjusted for time since last birth, number of recorded births, BMI, and alcohol intake. P values are based on the relevant Wald tests. BMI, body mass index; CI, confidence interval; CPRD, Clinical Practice Research Datalink; OR, odds ratio.