Prevalence and factors associated with the death of older people hospitalized due to Covid-19 in the state of Paraná.

ABSTRACT

OBJECTIVE: To estimate the prevalence and to analyze the factors associated with the death of older people hospitalized due to Covid-19 in the state of Paraná. METHOD: Cross-sectional study conducted with secondary data from older people with a positive diagnosis of Covid-19 living in the State of Paraná, collected from March 1, 2020 to August 31, 2021. Prevalence ratios were obtained by adjusting the regression model. RESULTS: A total of 16,153 deaths of older people hospitalized in the State of Paraná were analyzed. The adjusted model revealed an association between death and some factors such as belonging to the age group of 75 to 84 years (PR = 1.28; CI95% = 1.24-1.32) and 85 years or over (PR = 1.52; CI95% = 1.45-1.59); male (PR = 1.17; CI95% = 1.13-1.21); obesity (PR = 1.23; CI95% = 1.16-1.29); other morbidities (PR = 1.25; CI95% = 1.20-1.30); and having used ventilatory support (PR = 2.60; CI95% = 2.33-2.86). Older people vaccinated against influenza had a probability of death reduced by 11% (PR = 0.89; CI95% = 0.86-0.93). CONCLUSION: The association of age, sex, and diagnosis of previous comorbidities with unfavorable outcomes from Covid-19 was identified. Having received the flu vaccine provided protection to elderly people who contracted SARS-CoV-2.