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 analysis, 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 mu g/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 significantly higher risk to develop severe COVID-19 infections. Elderly, and patients with CKD were associated with worse outcome.

Role of testosterone in SARS-CoV-2 infection: A key pathogenic factor and a biomarker for severe pneumonia.

OBJECTIVES: To investigate the association between sex hormones and the severity of coronavirus disease 2019 (COVID-19). Furthermore, associations between sex hormones and systemic inflammation markers, viral shedding and length of hospital stay were studied. DESIGN AND METHODS: This case-control study included a total of 48 male patients with COVID-19 admitted to an Italian reference hospital. The 24 cases were patients with PaO2/FiO2 <250 mmHg and who needed ventilatory support during hospitalization (severe COVID-19). The 24 controls were selected in a 1:1 ratio, matched by age, from patients who maintained PaO2/FiO2 >300 mmHg at all times and who may have required low-flow oxygen supplementation during hospitalization (mild COVID-19). For each group, sex hormones were evaluated on hospital admission. RESULTS: Patients with severe COVID-19 (cases) had a significantly lower testosterone level compared with patients with mild COVID-19 (controls). Median total testosterone (TT) was 1.4 ng/mL in cases and 3.5 ng/mL in controls (P = 0.005); median bioavailable testosterone (BioT) was 0.49 and 1.21 in cases and controls, respectively (P = 0.008); and median calculated free testosterone (cFT) was 0.029 ng/mL and 0.058 ng/mL in cases and controls, respectively (P = 0.015). Low TT, low cFT and low BioT were correlated with hyperinflammatory syndrome (P = 0.018, P = 0.048 and P = 0.020, respectively) and associated with longer length of hospital stay (P = 0.052, P = 0.041 and P = 0.023, respectively). No association was found between sex hormone level and duration of viral shedding, or between sex hormone level and mortality rate. CONCLUSIONS: A low level of testosterone was found to be a marker of clinical severity of COVID-19.

Cardiovascular Risk Factors and the Severity of COVID-19 Disease.

Background and objective Several cardiovascular risk factors have emerged as important determinants of severe illness and death among coronavirus disease 2019 (COVID-19) patients. However, the full impact of these cardiovascular risk factors is still under investigation. This study aimed to investigate the association between patients' level of cardiovascular risk and the severity of COVID-19. Materials and methods This observational study included all adult patients with COVID-19 hospitalized at Sheikh Khalifa Ibn Zaid International University Hospital from March 20 to May 10, 2020. The cardiovascular risk level was assessed by the doctor responsible for each patient based on the 2019 European Society of Cardiology (ESC), the European Atherosclerosis Society (EAS), and the European Association for the Study of Diabetes (EASD) guidelines. We examined the association between the patients' level of cardiovascular risk and their severity of COVID-19 disease by using a logistic regression model. Results Among 133 patients with confirmed COVID-19, 46.6% had a low cardiovascular risk level, 19.5% had a moderate risk level, 15.8% had a high risk level, and 18.1% was found to have a very high risk level. Patients with different cardiovascular risk levels had significantly different rates of complications including secondary infection (p-value: <0.001), acute respiratory distress syndrome (ARDS) (p-value = 0.017), intensive care unit (ICU) admission (p-value: <0.001), and death (p-value: <0.001). A patient's very high cardiovascular risk level versus low, moderate, or high cardiovascular risk level was independently associated with ICU admission [OR = 6.42, 95% CI: (1.45-28.30)]. Conclusion Based on our findings, an increased level of cardiovascular risk among patients was strongly associated with the severity of COVID-19. This study also highlights the need for assessing cardiovascular risk factors in all patients with COVID-19.

Different pattern of the second outbreak of COVID-19 in Marseille, France.

OBJECTIVE: To describe the characteristics of COVID-19 patients seen in March-April and June-August 2020 in Marseille, France with the aim to investigate possible changes in the disease between these two time periods. METHODS: Demographics, hospitalization rate, transfer to intensive care unit (ICU), lethality, clinical and biological parameters were investigated. RESULTS: Compared to those seen in March-April, COVID-19 patients seen in June-August were significantly younger (39.2 vs. 45.3 years), more likely to be male (52.9% vs. 45.6%), and less likely to be hospitalized (10.7 vs. 18.0%), to be transferred to ICU (0.9% vs. 1.8%) and to die (0.1% vs. 1.1%). Their mean fibrinogen and D-dimer blood levels were lower (1.0 vs. 1.5 g/L and 0.6 vs. 1.1 µg/mL, respectively). By contrast, their viral load was higher (cycle threshold ≤16 = 5.1% vs. 3.7%). CONCLUSIONS: Patients in the two periods did not present marked age and sex differences, but markers of severity were undoubtedly less prevalent in the summer period, associating with a 10 times decrease in the lethality rate.