Key result
Diabetes was an independent predictor of in-hospital mortality among patients with STEMI (OR 1.23, p=0.022), with mortality remaining twice as high as in nondiabetic patients (12.1% vs. 6.1%).
Cohort (n=19,096)
Yes
Odds Ratio: 1.23
Absolute Event Rate: 12.1% vs 6.1%
p-value: p=0.022
Despite significant temporal improvements in in-hospital mortality for diabetic STEMI patients, a substantial mortality gap persists compared to nondiabetics, particularly among women.
Diabetes signals persistent STEMI mortality risk; leaves open whether targeted strategies can close the twofold gap, especially in women.
BACKGROUND: Data on temporal trends in outcomes, gender differences, and adherence to evidence-based therapy (EBT) of diabetic patients with ST-segment elevation myocardial infarction (STEMI) are sparse. METHODS: We performed a retrospective analysis of prospectively acquired data on 3565 diabetic (2412 males and 1153 females) STEMI patients enrolled in the Swiss AMIS Plus registry between 1997 and 2010 and compared in-hospital outcomes and adherence to EBT with the nondiabetic population (n=15,531). RESULTS: In-hospital mortality dramatically decreased in diabetic patients, from 19.9% in 1997 to 9.0% in 2010 (p trend<0.001) with an age-adjusted decrease of 6% per year of admission. Similar trends were observed for age-adjusted reinfarction (OR 0.86, p<0.001), cardiogenic shock (OR 0.88, p<0.001), as well as death, reinfarction, or stroke (OR 0.92, p<0.001). However, the mortality benefit over time was observed in diabetic males (p trend=0.006) but not females (p trend=0.082). In addition, mortality remained twice as high in diabetic patients compared with nondiabetic ones (12.1 vs. 6.1%, p<0.001) and diabetes was identified as independent predictor of mortality (OR 1.23, p=0.022). Within the diabetic cohort, females had higher mortality than males (16.1 vs. 10.2%, p<0.001) and female gender independently predicted in-hospital mortality (OR 1.45, p=0.015). Adherence to EBT significantly improved over time in diabetic patients (p trend<0.001) but remained inferior - especially in women - to the one of nondiabetic individuals. CONCLUSIONS: In-hospital mortality and morbidity of diabetic STEMI patients in Switzerland improved dramatically over time but, compared with nondiabetic counterparts, gaps in outcomes as well as EBT use persisted, especially in women.
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Roffi et al. (2013) conducted a cohort in ST-segment elevation myocardial infarction (n=19,096). Diabetes vs. Nondiabetic was evaluated on In-hospital mortality (OR 1.23, p=0.022). Diabetes was an independent predictor of in-hospital mortality among patients with STEMI (OR 1.23, p=0.022), with mortality remaining twice as high as in nondiabetic patients (12.1% vs. 6.1%).
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