The association between snoring and myocardial infarction was studied in 14
53 people of both sexes aged 20-70 years. The study was carried out in a po
pulation of 92 364 residents and the subjects Here recruited using the Elec
toral Census. A questionnaire was sent to all participants, asking about sn
oring and cardiovascular risk factors. Hospital records were checked for th
e nest 4 years to establish how many of them developed myocardial infarctio
n. At the beginning of the follow-up study 39 patients were diagnosed with
ischaemic heart disease. Of the other 1414 participants. 571 (40.4%) were s
norers and 843 (59.6%) non-snorers. Twenty-one developed myocardial infarct
ion in the snorer group and four in the non-snorer group. The snorer group
presents an adjusted relative risk of myocardial infarction of 3.08 (95% CI
1.01-9.46) with respect to non-snorers. We conclude that snoring seems to
be a potential risk factor for myocardial infarction.