Heart failure & cardiomyopathies
The Impact of Meteorological Variables on Heart Failure Hospitalizations
Authors' conclusion
Temperature is independently associated with HF hospitalizations, with the risk increasing up to 1 week of exposure.
Study context
- Population
- Patients admitted for acute dyspnoea and diagnosed with acute heart failure (HF) at the emergency department (ED) of Nancy University Hospital, January 2010 to October 2022 (PARADISE study)
- Participants
- 4,512 patients
- Exposure
- Meteorological variables and HF hospitalization risk
- Outcome
- HF hospitalization risk by temperature, relative humidity, atmospheric pressure and rainfall over different exposure timeframes (3 days, 7 days, 14 days, 1 month)
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
HF hospitalizations
- Temperature (per 5 °C increase) · all timeframes
- IRR ∼0.90; P < 0.001
- Rainfall over 1 week (per 5 mm)
- IRR 1.11; P < 0.035
- Rainfall over 1 month (per 5 mm)
- IRR 1.18; P < 0.035
- Atmospheric pressure over 1 month (per 5 hPa)
- IRR 1.06; P = 0.003
Observational data: associations, not effects.
Further findings
Model performance and exposure duration
- Models including temperature significantly outperformed those excluding it
- Stepwise increase in HF risk with prolonged temperature exposure up to 1 week, then plateau (likelihood ratio test)
Original publication
The Impact of Meteorological Variables on Heart Failure Hospitalizations. JACC Adv. doi:10.
Summarised from the published abstract; every number is checked against it