(HealthDay News) — Long-acting reversible contraception (LARC) is highly acceptable even among women who present to initiate short-acting reversible contraception (SARC), according to a study published online Sept. 19 in the American Journal of Obstetrics & Gynecology.

David Hubacher, Ph.D., from FHI 360 in Raleigh, N.C., and colleagues conducted a partially randomized patient preference trial involving 916 women aged 18 to 29 years who were seeking a short-acting contraceptive method. Forty-three percent of participants were randomized to either LARC or SARC. The remaining 57 percent of women who declined randomization but agreed to follow-up were observed after choosing their preferred method.

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The researchers found that the probability of continuation at 12 months was 63.3, 53.0, and 77.8 percent for the preference SARC, randomized SARC, and randomized LARC, respectively (P < 0.001 in the comparison involving randomized groups). The probability of 12-month cumulative pregnancy was 6.4, 7.7, and 0.7 percent, respectively (P = 0.01 comparing randomized groups). The proportion who were happy/neutral with their initial method was 78 percent for randomized LARC users versus 89 percent for randomized SARC users (P < 0.05). All groups were equally happy/neutral among method continuers at 12 months (>90 percent).

“Even in a typical population of women who presented to initiate or continue short-acting reversible contraception, long-acting reversible contraception proved highly acceptable,” the authors write.

Several authors disclosed financial ties to Bayer, Teva, and Merck, all of which contributed funding to the study.

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