Coronary artery diseaseAge-Specific Gender Differences in In-Hospital Mortality by Type of Acute Myocardial Infarction
Section snippets
Methods
The MarketScan 2004 to 2007 inpatient admission databases included information from approximately 40 privately insured employers including state governments. Databases included >2.4 billion service records representing commercially insured employees, retirees, and dependents from >100 geographically diverse health insurance plans in all 50 United States and the District of Columbia. These databases contain patient demographics, dates of service, length of hospital stay, primary and up to 14
Results
Of the 91,088 patients, 60,065 (65.9%) were men and 31,023 (34.1%) were women. There were 28.9% women in the STEMI group and 37.4% women in the NSTEMI group (p <0.0001). As can be calculated from Table 1, STEMI accounted for a smaller percentage of AMI in women than in men (33.5% vs 42.5%, p <0.0001). Mean age was older in patients with NSTEMI than in those with STEMI (66.1 vs 61.2 years, p <0.0001).
Women were older than men at admission in the STEMI group (mean age 65.5 ± 13.3 vs 59.5 ± 11.8
Discussion
Our analysis using contemporary data on the privately insured population indicates that when the in-hospital mortality rate was examined in patients with STEMI and with NSTEMI separately, the diseases were found to have different patterns by gender. In patients with STEMI women <60 years old had higher odds of in-hospital mortality than men of the same age. In contrast, in patients with NSTEMI and <70 years old the difference in risk of in-hospital death was not statistically significant
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