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. Author manuscript; available in PMC: 2016 Sep 30.
Published in final edited form as: Contraception. 2011 Sep 28;85(4):351–358. doi: 10.1016/j.contraception.2011.08.006

Table 5.

Final subject satisfaction results using a 100-point VAS and preference for OC and study medication administration

Doxycycline Placebo p
Mean (SD) Mean (SD)
N (%) N (%)
n=31 n=28
Assessed after 84 days
Prefer continuous OC 22 (71.0) 15 (53.6) .08
 Cyclic OC 7 (22.6) 5 (17.9)
 No preference 2 (6.5) 8 (28.6)
Prefer continuous OC without study medication 14 (45.2) 11 (39.3) .65
 Continuous OC with study medication 5 (16.1) 3 (10.7)
 No preference 12 (38.1) 14 (50.0)
Assessed after 112 days
Final satisfaction VAS 67.0 (35.3) 72.0 (30.9) .56
Do you plan to:
 Continue taking OC continuously 16 (51.6) 14 (50.0) .85
 Take cyclic OC 8 (25.8) 6 (21.4)
 Start a different method 6 (19.4) 6 (21.4)
 Discontinue birth control 1 (3.2) 2 (7.1)

Questions were asked after 84 days and at the end of the 112-day study period. Analysis does not include the five subjects who discontinued the study prior to this time.