Male predominance in disease severity and mortality in a low Covid-19 epidemic and low case-fatality area – a population-based registry study
Erik Forsblom, Suvi Silén, Elisa Kortela, Maarit J. Ahava, Hanna‐Riikka Kreivi, Ville Holmberg, Asko Järvinen, Johanna Hästbacka, Sanna‐Maria Kivivuori, Atte Meretoja
Abstract
BACKGROUND: Men reportedly suffer from a more severe disease and higher mortality during the global SARS-CoV-2 (Covid-19) pandemic. We analysed sex differences in a low epidemic area with low overall mortality in Covid-19 in a population based setting with patients treated in specialized healthcare. METHODS: We entered all hospitalized laboratory-confirmed Covid-19 cases of all specialized healthcare hospitals of the Capital Province of Finland, into a population-based quality registry and described demographics, severity and case-fatality by sex of the first Covid-19 wave February-June 2020. RESULTS: =.005). Men required intensive care unit (ICU) more often (27% vs. 17%) with longer lengths-of-stays at ICU. Male sex associated with significantly higher case-fatality at 90-days (15% vs. 8%) and all excess male deaths occurring after three weeks from onset. Men with fatal outcomes had delays in both Covid-19 testing and hospital admission after a positive test. The delays in patients with the most severe and fatal outcomes differed markedly by sex. In multivariable analysis, male sex associated independently with case-fatality (OR 2.37; 95% CI 1.22-4.59). CONCLUSIONS: Male sex associated with higher disease severity and case-fatality. Late presentation of male fatal cases could represent different treatment-seeking behaviour or disease progression by sex.