Estimates of unintended pregnancy among US active-duty service women and the impact on Women Peace and Security objectives as measured by potential readiness days lost.

Introduction: The prevalence of unintended pregnancy (UIP) in the United States is high among active-duty service women (ADSW).

Objective: To estimate the number of UIPs and the impact these pregnancies have on the ability to meet Women, Peace and Security objectives as measured by maximum potential readiness days lost (mRDL).

Methods: Using data from the Military Health System Data Repository, ADSW aged 18 to 44 years, were identified from fiscal year (FY) 2019 data. Deliveries were identified using Medicare Severity Diagnosis-Related Group codes. The estimated number of UIPs was calculated by multiplying both the number of ADSW and the number of deliveries by age-adjusted rates of UIP. Post partum women do not have to meet height and weight standards or complete a physical fitness test for up to 365 days after a full-term delivery. Lost readiness days were calculated by multiplying the number of UIPs by 365 days. Data were stratified by age, race, rank and branch of service.

Results: A total of 230 596 ADSW were identified in FY2019. Using the number of ADSW, an estimated 12 683 ADSW experienced an unintended pregnancy, resulting in an estimated 4 629 215 mRDL. Using the number of deliveries, an estimated 6785 deliveries were a result of UIPs, resulting in an estimated 2 476 364 mRDL. The highest estimates of UIPs were among ADSW aged 18 to 24 years, of White race, in a Junior Enlisted rank and in the Army.

Conclusion: Estimates of UIPs among ADSW would result in considerable impact on their military career. Dealng with UIPs proactively, by encouraging comprehensive family planning and instituting additional reproductive health policies for service members by ensuring that service members can make informed decisions about their reproductive health while maintaining operational effectiveness, is important for meeting United States Department of Defense Women, Peace and Security objectives.