CE: An Evidence-Based Update on Contraception.
Laura E Britton, Amy Alspaugh, Madelyne Z Greene and 1 others
PMID 31977414WHAT IT FOUND
Typical-use failure rates vary widely, from below 1% with implants and IUDs to 13% with male condoms and 21% with female condoms.
Return to fertility is usually rapid, except after depot medroxyprogesterone acetate.
Key findings
01Typical-use failure rates are below 1% for implants, IUDs, and the copper IUD, but 13% for male condoms and 21% for female condoms.
02Fertility returns rapidly after most contraceptive methods, but ovulation may not resume for 15 to 49 weeks after the last depot medroxyprogesterone acetate injection.
03If a patient misses two combined hormonal contraceptive pills, the most recent pill should be taken as soon as possible and a backup method should be used for seven days.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
This is a narrative review, not a trial or systematic review, so it summarizes existing guidance rather than testing a new intervention. Emergency contraception is explicitly outside the scope, so it gives no guidance on that method. Failure rates are first-year unintended pregnancy percentages for groups of users, so they do not predict an individual patient's risk without considering adherence, medical eligibility, and access. The review notes that providers have shown bias by recommending IUDs more often to Black and Latina women with low socioeconomic status, so method recommendations may reflect provider bias rather than patient preference. It states that many fertility apps are not FDA-regulated and some contain erroneous medical information, so app-based fertility awareness advice cannot be assumed to be accurate.
Declared interests
The authors and planners disclosed no potential conflicts of interest, financial or otherwise.
The easy way to misread this
Do not treat implants and IUDs as automatically best for every patient. The review says providers have shown bias by recommending IUDs more often to Black and Latina women with low socioeconomic status, and pressuring patients into these methods undermines reproductive autonomy.