Importance: Extensive research has found the detrimental health effects of heat waves. However, a critical gap exists in understanding their association with adverse health events among older dually eligible individuals, who may be particularly susceptible to heat waves.
Objective: To assess the association between heat waves and adverse health events among dually eligible individuals 65 years and older.
Design, setting, and participants: This retrospective time-series study assessed the association between heat waves in warm months from 2016 to 2019 and zip code tabulation area (ZCTA)-day level adverse health events. Dually eligible individuals 65 years and older who were continuously enrolled in either a Medicare fee-for-service plan or a Medicare Advantage plan with full Medicaid benefits from May to September in any given year were identified. All ZCTAs in the US with at least 1 dually eligible individual in each study year were included. Data were analyzed from September 2023 to August 2024.
Exposure: Heat waves, defined as 3 or more consecutive extreme heat days (ie, days with a maximum temperature of at least 90 °F [32.2 °C] and in the 97th percentile of daily maximum temperatures for each ZCTA during the study period).
Main outcomes and measures: Daily counts of heat-related emergency department visits and heat-related hospitalizations for each ZCTA.
Results: The study sample included 5 448 499 beneficiaries 65 years and older in 28 404 ZCTAs across 50 states and Washington, DC; the mean (SD) proportion of female beneficiaries and beneficiaries 85 years and older in each ZCTA was 66% (7%) and 20% (8%), respectively. The incidence rate for heat-related emergency department visits was 10% higher during heat wave days compared to non-heat wave days (incidence rate ratio [IRR], 1.10; 95% CI, 1.08-1.12), and the incidence rate of heat-related hospitalizations was 7% higher during heat wave days (IRR, 1.07; 95% CI, 1.04-1.09). There were similar patterns in other adverse health events, including a 4% higher incidence rate of death during heat wave days (IRR, 1.04; 95% CI, 1.01-1.07). The magnitude of these associations varied across some subgroups. For example, the association between heat waves and heat-related emergency department visits was statistically significant only for individuals in 3 of 9 US climate regions: the Northwest, Ohio Valley, and the West.
Conclusions and relevance: In this time-series study, heat waves were associated with increased adverse health events among dually eligible individuals 65 years and older. Without adaptation strategies to address the health-related impacts of heat, dually eligible individuals are increasingly likely to face adverse outcomes.
Importance: People with disabilities experience pervasive health disparities driven by adverse social determinants of health, such as unemployment. Section 14(c) of the 1938 Fair Labor Standards Act has been a controversial policy that allows people with disabilities to be paid below the prevailing minimum wage, but its impact on employment remains unknown despite ongoing national debates about its repeal.
Objective: To estimate whether state-level repeal of Section 14(c) was associated with employment-related outcomes for people with cognitive disability.
Design, setting, and participants: This quasi-experimental, synthetic difference-in-differences study used individual-level data from the 2010-2019 American Community Surveys. Outcomes before and after subminimum wage law repeal in 2 states (New Hampshire and Maryland) that repealed Section 14(c) were compared with a synthetic group of control states that did not implement repeal. Individuals aged 18 to 45 years who reported having a cognitive disability were included. Data were analyzed from May 2023 to May 2024.
Exposure: Repeal of Section 14(c) in New Hampshire (2015) and Maryland (2016).
Main outcomes and measures: Primary outcomes were labor force participation and employment rates. Secondary outcomes were annual wages, annual hours worked, hourly wages, and proportion earning above state minimum wage among employed individuals.
Results: The sample included 450 838 individuals. Of these, 253 157 (55.7%) were male, and the mean (SD) age was 31.3 (8.4) years. In state-specific analyses, New Hampshire's labor force participation and employment had a statistically significant increase by 5.2 percentage points (β = 0.05; 95% CI, 0-0.10; P = .04) and 7 percentage points (β = 0.07; 95% CI, 0.01-0.13; P = .03), respectively, following Section 14(c) repeal. Labor force participation and employment both increased in Maryland, although estimates were not statistically significant. Pooling both states, Section 14(c) repeal was associated with a statistically significant 4.7-percentage point (β = 0.05; 95% CI, 0.01-0.08; P = .01) increase in labor force participation and a nonsignificant 4.3-percentage point (β = 0.04; 95% CI, 0-0.09; P = .07) increase in employment.
Conclusions and relevance: In this study, repeal of Section 14(c), a policy allowing subminimum wages for people with disabilities, led to increases in labor force participation, though with heterogeneity at the state level. These findings suggest the importance of state-level factors in shaping program effects, especially as national-level Section 14(c) repeal is being debated.
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