Background and aims Corona virus diseases 2019 (COVID-19) pandemic spread rapidly. Growing evidences that overweight and obesity which extent nearly a third of the world population were associated with severe COVID-19. This study aimed to explore the association and risk of increased BMI and obesity with composite poor outcome in COVID-19 adult patients. Methods We conducted a systematic literature search from PubMed and Embase database. We included all original research articles in COVID-19 adult patients and obesity based on classification of Body Mass Index (BMI) and composite poor outcome which consist of ICU admission, ARDS, severe COVID-19, use of mechanical ventilation, hospital admission, and mortality. Results Sixteen studies were included in meta-analysis with 9 studies presented BMI as continuous outcome and 10 studies presented BMI as dichotomous outcome (cut-off ≥30 kg/m 2 ). COVID-19 patients with composite poor outcome had higher BMI with mean difference 1.12 (95% CI, 0.67–1.57, P < 0.001). Meanwhile, obesity was associated with composite poor outcome with odds ratio (OR) = 1.78 (95% CI, 1.25–2.54, P < 0.001) Multivariate meta-regression showed the association between BMI and obesity on composite poor outcome were affected by age, gender, DM type 2, and hypertension. Conclusion Obesity is a risk factor of composite poor outcome of COVID-19. On the other hand, COVID-19 patients with composite poor outcome have higher BMI. BMI is an important routine procedure that should always be assessed in the management of COVID-19 patients and special attention should be given to patients with obesity.

Background: and Aims; To investigate the association between use of angiotensin-converting enzyme inhibitor (ACEI)/angiotensin-receptor blocker (ARB) and outcomes of hypertensive COVID-19 patients, a systematic review and meta-analysis were performed. Methods: We systematically searched PubMed, EuropePMC, ProQuest, and Cochrane Central Databases using the terms "(COVID-19 OR SARS-CoV-2) AND (angiotensin converting enzyme OR angiotensin receptor blocker)". The primary and second outcomes were mortality (non-survivor) and severe COVID-19, respectively. Results: Totally, 7410 patients were included from 15 studies. Pooled analysis showed that the use of ACEI/ARB was not associated with mortality (OR 0.73 [0.38, 1.40], p ¼ 0.34; I 2 : 81%) and severity (OR 1.03 [0.73, 1.45], p ¼ 0.87; I 2 : 65%). Pooled adjusted OR showed no risk/benefit associated with ACEI/ARB use in terms of mortality (OR 0.83 [0.54, 1.27], p ¼ 0.38; I 2 : 0%). Subgroup analysis showed that the use of ARB was associated with reduced mortality (OR 0.51 [0.29, 0.90], p ¼ 0.02; I 2 : 22%) but not ACEI subgroup (OR 0.68 [0.39, 1.17], p ¼ 0.16; I 2 : 0%). Meta-regression showed that the association between ACEI/ARB use and mortality in patients with COVID-19 do not varies by gender (p ¼ 0.104). GRADE showed a very low certainty of evidence for effect of ACEI/ARB on mortality and severity. The certainty of evidence was very low for both ACEI and ARB subgroups. Conclusion: Administration of a renin angiotensin system (RAS) inhibitor, was not associated with increased mortality or severity of COVID-19 in patients with hypertension. Specifically, ARB and not ACEI use, was associated with lower mortality.

Objective: The aim of the study was to evaluate the association between chronic kidney disease (CKD) and new onset renal replacement therapy (RRT) with the outcome of Coronavirus Disease 2019 (COVID-19) in patients. Methodology: A systematic literature search from several databases was performed on studies that assessed CKD, use of RRT, and the outcome of COVID-19. The composite of poor outcome consisted of mortality, severe COVID-19, acute respiratory distress syndrome (ARDS), need for intensive care, and use of mechanical ventilator. Results: Nineteen studies with a total of 7216 patients were included. CKD was associated with increased composite poor outcome (RR 2.63 [1.33, 5.17], P = .03; I2 = 51%, P = .01) and its subgroup, consisting of mortality (RR 3.47 [1.36, 8.86], P = .009; I2 = 14%, P = .32) and severe COVID-19 (RR 2.89 [0.98, 8.46], P = .05; I2 = 57%, P = .04). RRT was associated with increased composite poor outcome (RR 18.04 [4.44, 73.25], P < .001; I2 = 87%, P < .001), including mortality (RR 26.02 [5.01, 135.13], P < .001; I2 = 60%, P = .06), severe COVID-19 (RR 12.95 [1.93, 86.82], P = .008; I2 = 81%, P < .001), intensive care (IC) (RR 14.22 [1.76, 114.62], P < .01; I2 = 0%, P < .98), and use of mechanical ventilator (RR 34.39 [4.63, 255.51], P < .0005). Conclusion: CKD and new-onset RRT were associated with poor outcome in patients with COVID-19.