High school graduation rates and preventive health care make Iowa one of the nation’s top 10 states for women, infant and children’s health, according to a recently released study.Iowa was ranked ninth in the nation in the 2018 Health of Women and Children Report by America’s Health Rankings.The state’s ranking, while high, was pulled down by behaviors associated with substance abuse.Several factors played into the rankings, including people’s behavior, public policy, clinical care and environment.The study ranked Iowa No.