Clinical characteristics, treatment outcomes and factors associated with severe illness in 813 COVID-19 patients admitted in a tertiary care hospital of eastern India.

INTRODUCTION: This retrospective observational study has been designed to identify clinical characteristics, treatment outcomes and factors associated with severe illness in 813 COVID-19 patients hospitalised in an Indian tertiary care hospital. MATERIAL AND METHODS: This was a retrospective analysis of patient admitted between 1st July to 15th Aug 2020 with COVID-19 infections. Logistic regression was performed to explore the association of clinical characteristics and laboratory parameters with the risk of severe disease and mortality. The statistical significance level was set at 0.05 (two-tailed). RESULTS: Out of 813 study patients, 630 (77.50%) patients were categorised with mild to moderate while 183 (22.50%) patients as severe Covid infection. Mortality was significantly higher in severe Covid patients as compared to mild moderate cases (66.21% vs. 10.31%. p<0.0001. Patients with severe infection were significantly more likely to have diabetes hypertension, chronic kidney disease (CKD) and had significantly higher Neutrophil count, serum creatinine, C-reactive protein (CRP), ferritin, D-Dimer and decreased haemoglobin, lymphocyte and serum calcium than patients with mild-moderate infection. In Multivariate analy-sis, age more than 60 years [AOR: 2.114, 95% CI (1.05-4.254), 0.036], NLR more than 3.3 [AOR: 1.082, 95% CI (1.030-1.137), 0.002] and D-Dimer >1 µg/mL [AOR: 2.999 (1.464- 6.146),0.003] were found significantly associated with severe disease (p < 0.05). Factors associated with mortality were age more than 60 years, presence of breathlessness, severe disease or presence of chronic kidney disease. CONCLUSIONS: Factors like elderly age (age > 60 years), elevated NRL, CRP, D-Dimer and serum ferritin were associated with sig-nificantly higher risk to develop severe COVID-19 infections. Elderly, and patients with CKD were associated with worse outcome.

Clinical and Laboratory Predictors of Mortality in COVID-19 Infection: A Retrospective Observational Study in a Tertiary Care Hospital of Eastern India.

Introduction COVID-19 is associated with huge morbidity and mortality in India. Identification of factors associated with mortality would make a difference in the management of COVID-19 infection-related illness. Objective To assess clinical & laboratory parameters associated with adverse outcomes among 984 patients with COVID-19 infection admitted to a tertiary care hospital in eastern India. Materials and methods All patients with real-time polymerase chain reaction (RTPCR) or rapid antigen positive for COVID-19 admitted at our All India Institute of Medical Sciences (AIIMS) Patna between 1st July to 30th Aug 2020 were included for analysis. Statistical analysis was performed using Stata, version 10 (Stata Corp, College Station, USA). Four subgroup regression models have been analyzed to predict the odds of death. Results A total of 984 COVID-19 cases admitted to our hospital during the given period were analyzed. Out of 984 cases, 762 (77.44%) were males and 222 (22.56%) females. The overall case-fatality rate among admitted cases was 254 (25.81%) [males (26.64%) and females (22.96%)]. The final logistic regression model showed that patients presenting with severe COVID-19 disease (adjusted odds ratio [aOR]: 17.81), cough (aOR: 3.83), dyspnea (aOR:2.35), age 60-75 (aOR:1.47), age >75 years (aOR:3.97), presence of chronic kidney disease (CKD) (aOR:2.95), were found to be significantly associated with a high risk of mortality after controlling for the confounders (p<0.05). Among lab variable, total leukocyte count (TLC) (>10,000/mm3) (aOR: 1.74), neutrophil-lymphocyte ratio (NLR) (>3.3) (aOR:2.37), serum albumin (<3.4 g/dl) (aOR : 2.3), blood urea (>43 gm/dl) (aOR:3.72), ferritin (>322) (aOR:2.39), and D-dimer (>0.5) (aOR:5.58) were significantly associated with higher mortality (p<0.05) Conclusion Age 60 years plus, presence of CKD, and severe covid infection carried the highest risk of mortality. Lab markers such as raised TLC, ferritin, D-dimer, and low albumin were associated with worse outcomes in our subset of COVID-19-related illness.