Effects of ambient temperature, humidity, and other meteorological variables on hospital admissions for angina pectoris.

Background: Seasonal peaks in cardiovascular disease incidence have been widely reported, suggesting weather has a role.

Design: The aim of our study was to determine the influence of climatic variables on angina pectoris hospital admissions.

Methods: We correlated the daily number of angina cases admitted to a western Sicilian hospital over a period of 12 years and local weather conditions (temperature, humidity, wind force and direction, precipitation, sunny hours and atmospheric pressure) on a day-to-day basis.