Skip to main content
. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: Contraception. 2019 Aug 6;100(6):438–444. doi: 10.1016/j.contraception.2019.07.145

Table 2 –

Scheduled and unscheduled bleeding and/or spotting during 13 cycles of segesterone acetate/ethinyl estradiol contraceptive vaginal system use

Scheduled bleeding1
Unscheduled bleeding2
Cycle N3 Bleeding-only
Any - n (%)
Bleeding/Spotting
Any - n (%)
N3 Bleeding-only
Any - n (%)
Bleeding/Spotting
Any - n (%)
1 2020 1840 (91.1) 1908 (94.5) 2029 176 (8.7) 438 (21.6)
2 1744 1558 (89.3) 1625 (93.2) 1754 104 (5.9) 276 (15.7)
3 1509 1355 (89.8) 1423 (94.3) 1520 82 (5.4) 248 (16.3)
4 1456 1313 (90.2) 1372 (94.2) 1460 81 (5.5) 192 (13.2)
5 1406 1248 (88.8) 1312 (93.3) 1417 95 (6.7) 217 (15.3)
6 1259 1104 (87.7) 1177 (93.5) 1267 106 (8.4) 230 (18.2)
7 1214 1064 (87.6) 1138 (93.7) 1214 91 (7.5) 206 (17.0)
8 1174 1013 (86.3) 1085 (92.4) 1178 97 (8.2) 216 (18.3)
9 1022 873 (85.4) 947 (92.7) 1027 83 (8.1) 193 (18.8)
10 932 805 (86.4) 872 (93.6) 939 87 (9.3) 183 (19.5)
11 850 737 (86.7) 798 (93.9) 856 74 (8.6) 172 (20.1)
12 780 673 (86.3) 736 (94.4) 783 69 (8.8) 161 (20.6)
13 649 537 (82.7) 597 (92.0) 713 71 (10) 155 (21.7)
Overall 2055 1991 (96.9) 2011 (97.9) 2068 606 (29.3) 1165 (56.3)
1

Scheduled bleeding and/or spotting (i.e., withdrawal bleeding) was defined as any bleeding and/or spotting (B/S) that occurred during the CVS-out period (Days 22 to 28 of each cycle). Scheduled B/S may have continued uninterrupted into Days 1 to 4 of the subsequent cycle.

For any cycle, days 22-28 must have at least 3 non-missing B/S responses for it to be included in this analysis. Thus, each N may differ from the unscheduled bleeding analyses.

2

Unscheduled bleeding and/or spotting was defined as any bleeding and/or spotting (B/S) that occurred while using the CVS (i.e., Days 1 to 21 of the cycle), except B/S reported during Days 1 to 7 of the first cycle of CVS insertion or withdrawal bleeding that continued into Days 1 to 4 in subsequent cycles.

For any cycle to be included in this analysis, days 1-21 must have at least 15 non-missing B/S responses. Thus, each N may differ from the scheduled bleeding analyses.

3

N: total number of participants from pivotal cycle control set analyzed in each cycle. N overall is larger than cycle 1, because some subjects evaluable for later cycles were not evaluable in cycle 1.