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  • Title: Cause-specific mortality in diabetes: retrospective hospital based data from south India.
    Author: Vasan SK, Pittard AE, Abraham J, Samuel P, Seshadri MS, Thomas N.
    Journal: J Diabetes; 2012 Mar; 4(1):47-54. PubMed ID: 22018101.
    Abstract:
    BACKGROUND: India lacks comprehensive mortality data in individuals with diabetes. The present retrospective case-control study compared the causes of death in diabetic and non-diabetic inpatients in a tertiary care hospital in 2007. METHODS: Deaths in diabetic patients (n = 315) were compared with 307 randomly selected controls. Medical chart review established the primary cause of death, demographics, and clinical data. Data were summarized using descriptive statistics and comparative analyses were performed. RESULTS: Of the 79 067 inpatient admissions during 2007, diabetes of any type was recorded for 6517 (8.2%). There were 2017 inpatient deaths registered, 315 (15.6%) in diabetic patients and 1702 (84.4%) in non-diabetic patients, corresponding to mortality rates of 48.3/1000 admissions for diabetic patients and 23.4/1000 admissions for non-diabetic patients. The mean duration of hospitalization prior to death in diabetic versus non-diabetic patients was 6.4 vs 7.7 days (P = 0.015). Causes of death in diabetic patients were vascular disease (38.4%), infection (34.3%), renal failure (8.9%), and malignancy (8.9%); diabetic patients had significantly higher odds of death from vascular disease (odds ratio [OR] 4.05, 95% confidence interval [CI] 2.67-6.16; P ≤ 0.0001), renal causes (OR 7.39, 95%CI 2.53-29.27; P ≤ 0.001) and infection (OR 1.61, 95% CI 1.12-2.32; P ≤ 0.0001). Comparing cases and controls after stratifying by age (<56 and ≥56 years), the greater odds of vascular death among diabetics remained significant in both age categories. CONCLUSIONS: We report vascular disease as the leading cause of death among diabetic hospital inpatients in one tertiary care center in India, in contrast with previous hospital-based studies from India.
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