Anemia predicts poor outcomes of COVID-19 in hospitalized patients: a prospective study in Iran.
BMC Infect Dis
; 21(1): 170, 2021 Feb 10.
Article
in English
| MEDLINE | ID: covidwho-1079220
ABSTRACT
BACKGROUND:
There are limited number of studies with controversial findings regarding the association between anemia at admission and coronavirus disease 2019 (COVID-19) outcomes. Therefore, in this research, we aimed to investigate the prospective association between anemia and COVID-19 outcomes in hospitalized patients in Iran.METHODS:
In this prospective study, the data of 1274 consecutive patients hospitalized due to COVID-19 were statistically analyzed. All biomarkers, including hemoglobin and high-sensitivity C-reactive protein (hs-CRP) levels were measured using standard methods. Anemia was defined as a hemoglobin (Hb) concentration of less than 13 g/dL and 12 g/dL in males and females, respectively. Assessing the association between anemia and COVID-19 survival in hospitalized patients was our primary endpoint.RESULTS:
The mean age of the participants was 64.43 ± 17.16 years, out of whom 615 (48.27%) were anemic subjects. Patients with anemia were significantly older (P = 0.02) and had a higher frequency of cardiovascular diseases, hypertension, kidney disease, diabetes, and cancer (P < 0.05). The frequency of death (anemic 23.9% vs. nonanemic 13.8%), ICU admission (anemic 27.8% vs. nonanemic14.71%), and ventilator requirement (anemic 35.93% vs. nonanemic 20.63%) were significantly higher in anemic patients than in nonanemic patients (P < 0.001). According to the results of regression analysis, after adjusting for significant covariate in the univariable model, anemia was independently associated with mortality (OR 1.68, 95% CI 1.10, 2.57, P = 0.01), ventilator requirement (OR 1.74, 95% CI 1.19, 2.54, P = 0.004), and the risk of ICU admission (OR 2.06, 95% CI 1.46, 2.90, P < 0.001).CONCLUSION:
The prevalence of anemia in hospitalized patients with COVID-19 was high and was associated with poor outcomes of COVID-19.Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
/
Anemia
Type of study:
Cohort study
/
Observational study
/
Prognostic study
Topics:
Long Covid
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
Asia
Language:
English
Journal:
BMC Infect Dis
Journal subject:
Communicable Diseases
Year:
2021
Document Type:
Article
Affiliation country:
S12879-021-05868-4
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