Association of health literacy, COVID-19 threat, and vaccination intention among Brazilian adolescents.

OBJECTIVE: investigate the influence of health literacy on the assessment of COVID-19 threat to health and the intention not to be vaccinated among Brazilian adolescents. METHOD: cross-sectional study with 526 Brazilian adolescents aged 14 to 19 years. Socioeconomic aspects, health-disease profile, health literacy, health threat by COVID-19 and intention not to be vaccinated were analyzed by bivariate association and multiple linear regression with Poisson response. RESULTS: higher health literacy score (p=0.010), cardiovascular disease (p=0.006), lower income (p=0.000), and living in the North region (p=0.007) were factors that contributed to feeling more threatened by COVID-19. Health literacy did not influence the intention not to be vaccinated (p=0.091), whose prevalence was lower among adolescents in the Southeast region when compared to those in the North region (p=0.010), among those who attended higher education (p=0,049) and those with higher income (p=0.000). CONCLUSION: health literacy influenced the perception of COVID-19 threat, but not the intention not to be vaccinated. Assessment of COVID-19 threat to health and prevalence of the intention not to be vaccinated were influenced by the region of residence, income, and education, which reinforces the importance of social determinants of health in this context. KEYPOINTS: (1) Average health literacy (HL) score of Brazilian adolescents: 25.3 (p-HLAT-8). (2) Adolescents in the Southeast region felt less threatened by COVID-19. (3) Higher HL score indicated adolescents felt more threatened by COVID-19. (4) Intention not to be vaccinated was observed among adolescents with higher income and education. (5) About 87% of Brazilian adolescents want to be vaccinated against COVID-19.

Factors associated with COVID-19 severity among Brazilian pregnant adolescents: a population-based study. / Fatores associados à gravidade da COVID-19 em gestantes adolescentes brasileiras: estudo de base populacional.

OBJECTIVE: to identify the factors associated with need for intensive care unit admission of Brazilian pregnant adolescents with COVID-19. METHOD: population-based non-concurrent cohort study using secondary databases. Brazilian pregnant adolescents who had laboratory confirmation of SARS-CoV-2 by RT-PCR, between March 14, 2020 and April 11, 2021 were included in the study. Statistical analysis using the Poisson multiple regression model, estimating the relative risk and respective 95% confidence intervals, with values of p <0.05 considered significant. RESULTS: in total, 282 pregnant women were included in the study, with median age of 17 years, most with brown skin, in the third trimester of pregnancy, and living in urban or peri-urban areas. The intensive care unit admission rate was 14.5%, associated with living in the Southeast region of Brazil (RR=5.03, 95%CI=1.78-14.24, p=0.002), oxygen saturation below 95% (RR=2.62, 95%CI=1.17-5.87, p=0.019), and having some comorbidity (RR=2.05, 95%CI=1.01-4.16, p=0.047). CONCLUSION: the intensive care unit admission rate was high among Brazilian pregnant adolescents and was associated with living in the Southeast region of Brazil, having some comorbidity and/or presenting low oxygen saturation.(1) The ICU admission rate of pregnant adolescents was high: 14.5%. (2) Low oxygen saturation was a predictor of COVID-19 severity. (3) Living in the Southeast region in Brazil increased the risk of ICU admission by five times. (4) Having some comorbidity increased the risk of ICU admission by two times.

Progression of COVID-19 Among Black Pregnant Women: Population-Based Study.

The aim of this study was to evaluate the evolution of COVID-19 related to race/skin color among Brazilian pregnant women registered on the Sistema de Informação de Vigilância da Gripe (SIVEP Gripe). This is a population-based study, based on the data from SIVEP Gripe, with data collected at two time points, August 2020 and February 2021. From the complete database (575,935 cases on August 8, 2020 and 1,048,576 cases on January 2, 2021), the weeks 13 to 32 (563,851 cases) and 33 to 53 (469,241 cases) were selected. We selected cases of pregnant women with white, brown and black skin color and final evolution (1,884 and 1,286 cases). The final sample (939 and 858 cases) was defined by including participants who had all the targeted information recorded. The outcome variables were hospitalization, Intensive Care Unit (ICU) admission and COVID-19 deaths. The present study identified that there was a drop of approximately two-thirds in the proportion of pregnant women who required ICU care or died, when comparing the first and second periods. In the second period, black pregnant women had approximately five times higher risk of death compared to white and brown women.