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Cost‐effectiveness of emergency contraception options over 1 year

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BACKGROUND The copper intrauterine device is the most effective form of emergency contraception and can also provide long‐term contraception. The levonorgestrel intrauterine device has also been studied in combination with… Click to show full abstract

BACKGROUND The copper intrauterine device is the most effective form of emergency contraception and can also provide long‐term contraception. The levonorgestrel intrauterine device has also been studied in combination with oral levonorgestrel for women seeking emergency contraception. However, intrauterine devices have higher up‐front costs than oral methods, such as ulipristal acetate and levonorgestrel. Health care payers and decision makers (eg, health care insurers, government programs) with financial constraints must determine if the increased effectiveness of intrauterine device emergency contraception methods are worth the additional costs. OBJECTIVE We sought to compare the cost‐effectiveness of 4 emergency contraception strategies–ulipristal acetate, oral levonorgestrel, copper intrauterine device, and oral levonorgestrel plus same‐day levonorgestrel intrauterine device–over 1 year from a US payer perspective. STUDY DESIGN Costs (2017 US dollars) and pregnancies were estimated over 1 year using a Markov model of 1000 women seeking emergency contraception. Every 28‐day cycle, the model estimated the predicted number of pregnancy outcomes (ie, live birth, ectopic pregnancy, spontaneous abortion, or induced abortion) resulting from emergency contraception failure and subsequent contraception use. Model inputs were derived from published literature and national sources. An emergency contraception strategy was considered cost‐effective if the incremental cost‐effectiveness ratio (ie, the cost to prevent 1 additional pregnancy) was less than the weighted average cost of pregnancy outcomes in the United States ($5167). The incremental cost‐effectiveness ratios and probability of being the most cost‐effective emergency contraception strategy were calculated from 1000 probabilistic model iterations. One‐way sensitivity analyses were used to examine uncertainty in the cost of emergency contraception, subsequent contraception, and pregnancy outcomes as well as the model probabilities. RESULTS In 1000 women seeking emergency contraception, the model estimated direct medical costs of $1,228,000 and 137 unintended pregnancies with ulipristal acetate, compared to $1,279,000 and 150 unintended pregnancies with oral levonorgestrel, $1,376,000 and 61 unintended pregnancies with copper intrauterine devices, and $1,558,000 and 63 unintended pregnancies with oral levonorgestrel plus same‐day levonorgestrel intrauterine device. The copper intrauterine device was the most cost‐effective emergency contraception strategy in the majority (63.9%) of model iterations and, compared to ulipristal acetate, cost $1957 per additional pregnancy prevented. Model estimates were most sensitive to changes in the cost of the copper intrauterine device (with higher copper intrauterine device costs, oral levonorgestrel plus same‐day levonorgestrel intrauterine device became the most cost‐effective option) and the cost of a live birth (with lower‐cost births, ulipristal acetate became the most cost‐effective option). When the proportion of obese women in the population increased, the copper intrauterine device became even more most cost‐effective. CONCLUSION Over 1 year, the copper intrauterine device is currently the most cost‐effective emergency contraception option. Policy makers and health care insurance companies should consider the potential for long‐term savings when women seeking emergency contraception can promptly obtain whatever contraceptive best meets their personal preferences and needs; this will require removing barriers and promoting access to intrauterine devices at emergency contraception visits.

Keywords: emergency contraception; contraception; cost; intrauterine device

Journal Title: American Journal of Obstetrics and Gynecology
Year Published: 2018

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