To the Editor:

The study of seasonal variations in admissions for acute myocardial infarction in the autonomous region of Andalusia, Spain, undertaken by San Román Terán et al, provides very similar results to those of our study published in the Revista Española de Cardiología,1 which refers to the same topic in the region of the Community of Valencia. To this extent, it is interesting to note the great similarity between both studies in the figures concerning the monthly distribution of admissions for acute myocardial infarction, which were more common in the colder months and less common during the warmer months. Finding such similar results with different methodologies confers greater robustness to the data. Likewise, the seasonal variations in mortality failed to reach statistical significance, perhaps because of the small sample size.

Confirmation of the seasonal pattern of admissions for myocardial infarction in Andalusia corroborates with new data the seasonal variations in the acute coronary syndrome, which has so far received little attention in Spain.