Figure 3

Rate of breast cancer according to duration and intensity of use of vaginal oestradiol tablets. Intensity categories were low (≤25 µg/week), medium (>25-50 µg/week), high (>50-70 µg/week), and very high (>70 µg/week). Adjusted for educational level, yearly income, polycystic ovary syndrome, endometriosis, chronic obstructive pulmonary disease, use of bisphosphonates, diabetes mellitus, and parity at index date