Abstract
: India is home to 77 million people with diabetes and has a large number of COVID 19 cases, albeit with a low fatality (<1.5%). Little Indian data is available about the prevalence of diabetes in COVID 19 and its impact on outcomes. This observational prospective study (approved by the Institutional Ethics Committee) was carried out in a designated COVID facility, largely catering to middle and upper socioeconomic classes. A total of 401 (125 F, mean age 54 y, range 19–92 y) consecutive adults hospitalized with COVID-19 infection as proven by positive nasal swab for SARS-CoV2 by RT-PCR were included. Diabetes mellitus was diagnosed either by known history or HbA1c≥6.5%. Severity was assessed using the WHO ordinal scale1. Clinical outcomes and markers of inflammation were compared between diabetes and non-diabetes groups. Out of 401 patients, 210 (52.4%) had either diabetes (189,47.1%) or hyperglycemia requiring insulin treatment (21, 5.2%). 152 (37.9%) reported known diabetes, and 37 (9.2%) had preexisting but undiagnosed diabetes (HbA1c≥ 6.5%). People with diabetes were significantly older (mean age 59.9 vs 47.7 y), and had a higher proportion of men (74.6 vs 63.7 %), hypertension (58.7 vs 25%), CAD (13.8 vs 4.2%), and CKD (5.3 vs 0.9%) and a higher mean baseline severity score (3.4±0.7 vs. 3.2±0.5, p-0.000). The diabetes group had a higher number of severe cases (WHO scale≥5) (20.1% vs 9%, p-0.002) and higher mortality (6.3 vs 1.4%, p-0.015). A higher proportion of the diabetes group required ICU admissions (24.3 vs 12.3%, p-0.002), glucocorticoid therapy (78.3 vs 54.2%, p-0.000), oxygen administration (53.4 vs 28.3%, p-0.000), inotropic support (7.4 vs 2.4%, p-0.019), and renal replacement therapy (3.7% vs 0,p-0.005). The mean duration of hospital stay was higher for the diabetes group (10.4 vs 9.1 days, p-0.016). Of those who died, 12/15 (80%) had diabetes. Baseline Hba1c (n=331) showed a significant correlation with outcome severity scores (r 0.136, p-0.013). Markers of inflammatory response, CRP (41.0±4.4 vs. 19.4±3.8, p-0.000), ferritin (404.8±41.6 vs. 258.8±40.2, p-0.012), IL6 (65.5±11.6 vs. 26.9±4.4, p-0.002), LDH (321.8±10.1 vs. 286.8±8.4, p-0.008) were significantly higher in the diabetes group. Procalcitonin and D Dimer did not differ significantly. In conclusion, we report the highest prevalence of diabetes in a hospitalized COVID-19 population so far. The diabetes group had more severe disease and greater mortality. Baseline HbA1c correlated with poor outcomes. The comorbidities could have contributed to these poorer outcomes in the diabetes group. Strategies to improve outcomes in this pandemic it is imperative to include screening for and better control of diabetes. Reference: 1 https://www.who.int/blueprint/priority-diseases/key-action/COVID-19_Treatment_Trial_Design_Master_Protocol_synopsis_Final_18022020.pdf
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