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1.
PLoS One ; 16(10): e0257891, 2021.
Article in English | MEDLINE | ID: covidwho-1468161

ABSTRACT

BACKGROUND: Previous studies have shown that a high body mass index (BMI) is a risk factor for severe COVID-19. The aim of the present study was to assess whether a high BMI affects the risk of death or prolonged length of stay (LOS) in patients with COVID-19 during intensive care in Sweden. METHODS AND FINDINGS: In this observational, register-based study, we included patients with COVID-19 from the Swedish Intensive Care Registry admitted to intensive care units (ICUs) in Sweden. Outcomes assessed were death during intensive care and ICU LOS ≥14 days. We used logistic regression models to evaluate the association (odds ratio [OR] and 95% confidence interval [CI]) between BMI and the outcomes. Valid weight and height information could be retrieved in 1,649 patients (1,227 (74.4%) males) with COVID-19. We found a significant association between BMI and the risk of the composite outcome death or LOS ≥14 days in survivors (OR per standard deviation [SD] increase 1.30, 95%CI 1.16-1.44, adjusted for sex, age and comorbidities), and this association remained after further adjustment for severity of illness (simplified acute physiology score; SAPS3) at ICU admission (OR 1.30 per SD, 95%CI 1.17-1.45). Individuals with a BMI ≥ 35 kg/m2 had a doubled risk of the composite outcome. A high BMI was also associated with death during intensive care and a prolonged LOS in survivors assessed as separate outcomes. The main limitations were the restriction to the first wave of the pandemic, and the lack of information on socioeconomic status as well as smoking. CONCLUSIONS: In this large cohort of Swedish ICU patients with COVID-19, a high BMI was associated with increasing risk of death and prolonged length of stay in the ICU. Based on our findings, we suggest that individuals with obesity should be more closely monitored when hospitalized for COVID-19.


Subject(s)
COVID-19/diagnosis , Obesity/pathology , Adult , Body Mass Index , COVID-19/complications , COVID-19/virology , Cohort Studies , Critical Care , Female , Humans , Intensive Care Units , Length of Stay , Male , Middle Aged , Obesity/complications , Odds Ratio , Registries , Risk Factors , SARS-CoV-2/isolation & purification , SARS-CoV-2/metabolism , Sweden
2.
Vaccine ; 39(32): 4414-4418, 2021 07 22.
Article in English | MEDLINE | ID: covidwho-1275755

ABSTRACT

BACKGROUND: It has been hypothesised that the measles-mumps-rubella (MMR) vaccine may afford cross-protection against SARS-CoV-2 which may contribute to the wide variability in disease severity of Covid-19. METHODS: We employed a test negative case-control study, utilising a recent measles outbreak during which many healthcare workers received the MMR vaccine, to investigate the potential protective effect of MMR against SARS-CoV-2 in 5905 subjects (n = 805 males, n = 5100 females). RESULTS: The odds ratio for testing positive for SARS-CoV-2, in recently MMR-vaccinated compared to not recently MMR-vaccinated individuals was 0.91 (95% CI 0.76, 1.09). An interaction analysis showed a significant interaction for sex. After sex-stratification, the odds ratio for testing positive for males was 0.43 (95% CI 0.24, 0.79, P = 0.006), and 1.01 (95% CI 0.83, 1.22, P = 0.92) for females. CONCLUSION: Our results indicate that there may be a protective effect of the MMR vaccine against SARS-CoV-2 in males but not females.


Subject(s)
COVID-19 , Measles , Mumps , Rubella , COVID-19 Vaccines , Case-Control Studies , Female , Health Personnel , Humans , Male , Measles/prevention & control , Measles-Mumps-Rubella Vaccine , SARS-CoV-2 , Vaccination
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