- The study investigated how air temperature affects hospitalizations for cardiovascular diseases among rural residents in Dingxi city, analyzing data from 2018 to 2019 using distributed lag non-linear models.
- A non-linear, bell-shaped relationship was found between air temperature and hospitalizations, with low temperatures (like -7°C and 0°C) having cumulative lag effects, meaning their impact on hospital admissions could last several days after exposure.
- Specific results showed significant peak hospitalization rates for ischemic heart disease and heart rhythm disorders at different temperature thresholds, with moderately high temperatures (17°C to 21°C) also leading to increased hospitalizations on the same day.