Effect of type-2 diabetes mellitus in long-term mortality in older adults: The NEDICES cohort study
A Corbatón-Anchuelo1, S Vega-Quiroga2, F Bermejo-Pareja3
1Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), Madrid, Spain; Cardiovascular Risk Group, Research Institute of Clínico San Carlos University Hospital (IdISSC), Madrid, Spain.
Aims:
To describe the mortality associated with type-2 diabetes mellitus (T2DM) in a Spanish elderly population during a 22-year period.
Procedures:
Prospective follow-up study (1994-95 to 2017) including 4,998 individuals (≥65 years old at baseline) of three communities (one rural) from central Spain. T2DM diagnosis was recorded during a clinical interview in 1994-95 (self-reported and information from their doctors, including treatment). Mortality incidence until 2017 was checked.
Results:
A total of 4,038 subjects were included, with a mean age of 73.6 (±6.6) years; 1,718 (42.5 %) were male and 685 (17.0 %) were diagnosed with T2DM. The mortality rate during follow-up was 85.2 %. Cardiovascular disease was the most frequent cause of death in DM2 subjects, followed by neoplasm. The mortality hazard ratio found for T2DM compared to non-T2DM subjects was 1.29 (1.16-1.45) after adjusting for multiple risk factors. The effect of TDM2 on the mortality rate remained significant in men (HR:1.27; CI 95 %:1.08-1.49;p = 0.005) and women (HR:1.32; CI 95 %:1.14-1.53;p < 0.001), with no differences between sexes (p = 0.705).
Main Conclusion:
The sustained reduction in T2DM elderly Spanish subjects' life expectancy address the necessity of community interventions and campaigns regarding lifestyle modifications and reinforce the need for an adequate and regular TDM2 subjects clinical follow-up.
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