Comparison of two home pregnancy tests for self-confirmation of medication abortion status: A randomized trial.

Objectives: To evaluate individuals' ability to perform and comprehend low-sensitivity and multilevel urine pregnancy tests during medication abortion follow-up.

Study Design: We conducted a pilot study of individuals using mifepristone and misoprostol for medication abortion through 63-days gestation. We randomly assigned participants to use a 1000 mIU/mL low-sensitivity pregnancy test or a five-level multilevel pregnancy test. Seven days after mifepristone, participants performed their test and completed a questionnaire. One week later, participants performed another test if day 7 low-sensitivity test had been positive or day 7 multilevel test had not shown a one-level drop. We assessed comprehension of abortion status based on participants' final test interpretation, and defined correct comprehension when patient report of pregnancy status was consistent with pregnancy test result. We also assessed usability with a 100-mm Visual Analogue Scale (0 'very easy'; 100 'very difficult') and satisfaction.

Results: We enrolled and randomized 88 participants to low-sensitivity (n = 43) and multilevel (n = 45) test groups. Comprehension was correct in 38/39 (97%) and 41/45 (91%) of low-sensitivity and multilevel test users, respectively (p = 0.37). When the test indicated a possible ongoing pregnancy, all three low-sensitivity test users and two of three multilevel test users accurately comprehended their results. Participants rated ease of use as 7.5 (range 0-68) for low-sensitivity and 9.0 (range 0-52) for multilevel (p = 0.24) tests. Most participants were likely or very likely to recommend use of their test (32/36 [89%] low-sensitivity and 42/44 [95%] multilevel test users, p = 0.66).

Conclusions: Patients could comprehend and use low-sensitivity and multilevel tests during medication abortion follow-up with similar satisfaction.

Implications: Individuals are able to independently use both the low-sensitivity and multilevel tests for medication abortion follow-up. Both are acceptable for medication abortion follow-up without in-person contact, but future, larger studies to compare comprehension of both tests may be necessary.