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Gender differences in the decrease of in-hospital mortality in patients with acute myocardial infarction during the last 20 years in Switzerland.


ABSTRACT: To assess temporal trends of in-hospital mortality in patients with acute myocardial infarction (AMI) enrolled in the Swiss nationwide registry (AMIS Plus) over the last 20 years with regard to gender, age and in-hospital treatment.All patients with AMI from 1997 to 2016 were stratified according to ST-segment elevation myocardial infarction (STEMI) or non-STEMI (NSTEMI), and gender using logistic regression analyses.Among 51?725 patients, 30?398 (59%) had STEMI and 21?327 (41%) had NSTEMI; 73% were men (63.9±12.8 years) and 27% were women (71.7±12.5 years). Over 20 years, crude in-hospital STEMI mortality decreased from 9.8% to 5.5% in men and from 18.3% to 6.9% in women. In patients with NSTEMI, it decreased from 7.1% to 2.1% in men and from 11.0% to 3.6% in women. After adjustment for age, mortality decreased per additional admission year by 3% in men with STEMI (OR 0.97, 95%?CI 0.96 to 0.98, P<0.001), by 5% in women with STEMI (OR 0.95, 95%?CI 0.93 to 0.96, P<0.001), by 6% in men with NSTEMI (OR 0.94, 95%?CI 0.93 to 0.96, P<0.001) and by 5% in women with NSTEMI (OR 0.95, 95%?CI 0.93 to 0.97, P<0.001). In patients <60 years, a decrease in mortality was seen in women with STEMI (OR 0.94, 95%?CI 0.90 to 0.99, P=0.025) and NSTEMI (OR 0.87, 95%?CI 0.80 to 0.94, P<0.001) but not in men with STEMI (OR 1.01, 95%?CI 0.98 to 1.04, P=0.46) and NSTEMI (OR 0.98, 95%?CI 0.94 to 1.03, P=0.41). The mortality decrease in patients with AMI was closely associated with the increase in reperfusion therapy.From 1997 to 2016, in-hospital mortality of patients with AMI in Switzerland has halved and was more pronounced in women, particularly in the age category <60 years.NCT01305785; Results.

SUBMITTER: Radovanovic D 

PROVIDER: S-EPMC5687526 | BioStudies | 2017-01-01

REPOSITORIES: biostudies

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