THURSDAY, Sept. 21, 2023 (HealthDay News) -- Death rates following a first heart attack decreased for those without diabetes or with type 2 diabetes (T2D), but not for those with type 1 diabetes (T1D), according to a study scheduled to be presented at the annual meeting of the European Association for the Study of Diabetes, held from Oct. 2 to 6 in Hamburg, Germany.
Linn Glynn, from the Karolinska Institutet in Stockholm, and colleagues compared trends in survival after a first myocardial infarction in people with and without diabetes. The analysis included 2,527 individuals with T1D, 48,321 individuals with T2D, and 243,170 individuals without diabetes with a first myocardial infarction identified through national health care registries (2006 to 2020).
The researchers found that during follow-up (up to 1,095 days), there was a significant decreased annual incidence trend for all-cause death in the control group (−1.9 percent) and individuals with T2D (−1.3 percent), but no such trend was seen in individuals with T1D (0 percent) in an adjusted analysis. There was a decrease in the annual incidence of cardiovascular death observed for the control (−2.0 percent), T2D (−1.6 percent), and T1D (−0.5 percent) groups. Findings were similar for major cardiovascular events in the control (−2.3 percent), T2D (−1.9 percent), and T1D (−0.6 percent) groups.
"During the last 15 years, the trend in death and major cardiovascular events in people without diabetes and with T2D having a first-time myocardial infarction has decreased significantly," the authors write. "In contrast, such a decreased trend was absent in people with T1D. This finding highlights the urgent need for understanding the cardiovascular risk in people with T1D."