Politicians, power, and the people's health: US elections and state health outcomes, 2012–2024

Our descriptive study examined current associations (2022-2024) between US state-level health outcomes and 4 US state-level political metrics: 2 rarely used in public health research (political ideology of elected representatives based on voting records; trifectas, where 1 party controls the executive and legislative branches) and 2 more commonly used (state policies enacted; voter political lean). The 8 health outcomes spanned the life course: infant mortality, premature mortality (death at age <65), health insurance (adults aged 35-64), vaccination for children and persons aged ≥65 (flu; COVID-19 booster), maternity care deserts, and food insecurity. For the first 3 outcomes, we also examined trends in associations (2012-2024). For all political metrics, higher state-level political conservatism was associated with worse health outcomes, especially for the metrics for political ideology and state trifectas. For example, in 2016, the premature mortality rate in states with Republican vs Democratic trifectas was higher by 55.4 deaths per 100 000 person-years (95% CI: 7.7, 103.1), and the slope of the rate of increase to 2021 was also higher, by 27.0 deaths per 100 000 person-years (95% CI: 24.4, 29.7). These results suggest elections, political ideology, and concentrations of political power matter for population health.