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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Contraception. 2020 May 19;102(3):168–173. doi: 10.1016/j.contraception.2020.05.004

Table 3.

Scheduled and unscheduled bleeding and spotting with 2-day and 4-day ring-free intervals in participants using a contraceptive vaginal ring releasing estradiol 75 mcg, 100 mcg, or 200 mcg per day and segesterone acetate 200 mcg per day

Ring dose n First 30-day extension Second 30-day extension
Scheduled bleeding Unscheduled bleeding Unscheduled spotting Scheduled bleeding Unscheduled bleeding Unscheduled spotting
2 day ring-free interval E2 75 mcg/day and SA 200 mcg/day 5 3 (60%) 0* 0 (0–11) 3 (60%) 0 (0–4) 0*
E2 100 mcg/day and SA 200 mcg/day 6 4 (67%) 0 (0–7) 0 (0–15) 6 (100%) 0 (0–2) 0.5 (0–1)
E2 200 mcg/day and SA 200 mcg/day 7 7 (100%) 0 (0–2) 2 (0–16) 7 (100%) 0* 3 (0–19)

4 day ring-free interval E2 75 mcg/day and SA 200 mcg/day 6 6 (100%) 0 (0–3) 0.5 (0–12) 6 (100%) 0 (0–4) 2.5 (0–6)
E2 100 mcg/day and SA 200 mcg/day 6 4 (67%) 0* 0.5 (0–6) 6 (100%) 0 (0–17) 0 (0–1)
E2 200 mcg/day and SA 200 mcg/day 4 4 (100%) 0* 0 (0–4) 4 (100%) 0* 0 (0–2)

Data presented as n (%) or median (range).

SA= Segesterone Acetate; E2= Estradiol

*

No range presented because all participants reported no unscheduled bleeding or spotting