|Equation||(# mothers) x (Q: Increased use of contraceptive due to the intervention) x (# QALY increase) x ($ QALY)|
|Explanation||This metric estimates the impact of home visiting programs on the increased use of contraceptives by mothers and subsequent increases in maternal lifetime health, estimated in terms of quality-adjusted life years (QALY). It is based on a meta-analysis of the impact of a wide array of home visiting programs including the following: Healthy Families America (HFA), Family Check Up for Children, Nurse-Family Partnership (NFP), Parents as Teachers (PAT), Triple P – Positive Parenting Program®—Variants suitable for home visiting, Family Spirit, Child First, Home Instruction for Parents of Preschool Youngsters (HIPPY), Early Head Start–Home-Based Option (EHS-HBO), Play and Learning Strategies (PALS). These programs serve children from birth through age 17, as well as mothers and expectant mothers.
Number of mothers: Reported by program.
Q: increased use of contraceptive (condoms) due to the intervention: [0.17]. This is estimated by Constellation staff using the following formula:
QALY increase: [0.13]. This is the average gain in QALY from 13 contraceptive methods reported by Sonnenberg, et al, (2004).
$ value per QALY: [$50,000]
Benefits are then discounted to present value based on the average age of participation to life expectancy.
|References||Barnet, B., Liu, J., DeVoe, M., Alperovitz-Bichell, K., & Duggan, A. K. (2007). Home Visiting for Adolescent Mothers: Effects on Parenting, Maternal Life Course, and Primary Care Linkage. The Annals of Family Medicine, 5(3), 224–232. https://doi.org/10.1370/afm.629
Guttmacher Institute (2018). Retrieved from: https://www.guttmacher.org/sites/default/files/report_downloads/table_3_state_level_estimates_of_contra_use.pdf
Sonnenberg, Frank A., et al. (2004). Costs and net health effects of contraceptive methods. Contraception, 69(6), 447-459.
U.S. Census Bureau. (2016). American Community Survey 5-year estimates – public use microdata sample, 2012-2016. Generated using Public Use Microdata Area (PUMA) in the Seven-county Twin Cities Metropolitan Area.
Washington State Institute for Public Policy. (2017). Benefit-cost technical documentation. Olympia, WA: Author. Retrieved from: http://www.wsipp.wa.gov/TechnicalDocumentation/WsippBenefitCostTechnicalDocumentation.pdf