Abstract. Although increases in severity of mortality from dengue infection have been observed in Brazil, their determinants are not fully known. A case-control study was conducted by using the National Notifiable Diseases Surveillance System, including patients with severe dengue during 2000-2005. Cases were defined as patients that died and controls were those who survived. Hierarchical multivariate logistic regression was performed. During the study period, there were 12,321 severe cases of dengue and 1,062 deaths. Factors independently associated with death included age 50 years (odds ratio [OR] = 2.29, 95% confidence interval [CI] = 1.59-3.29), 4 years of schooling (OR = 1.83, 95% CI = 1.47-2.28), a rural area (OR =2.84, 95% CI = 2.19-3.69), hospitalization (OR = 1.42, 95% CI = 1.17-1.73), and a high hematocrit (OR = 2.46, 95% CI = 1.85-3.28). Factors associated with a lower chance of dying were female sex (OR = 0.76, 95% CI = 0.67-0.87), history of previous dengue (OR = 0.78, 95% CI = 0.62-0.99), positive tourniquet test result (OR = 0.47, 95% CI = 0.33-0.66), laboratory diagnosis of dengue (OR = 0.75, 95% CI = 0.61-0.92), and a platelet count of 50,000-100,000 cells/mm 3 (OR = 0.56, 95% CI = 0.36-0.87). The risk profile identified in this study should serve to direct public health interventions to minimize deaths.
IntroduçãoA dengue é uma arbovirose que a partir da dé-cada de 90 passou a se destacar no cenário da saúde pública brasileira. Atualmente representa um dos problemas de saúde pública de maior relevância nacional 1 . De acordo com a Organização Pan-Americana da Saúde (OPAS), o Brasil é responsável por aproximadamente 70% dos casos de dengue notificados nas Américas e está entre os países com as maiores taxas de letalidade por febre hemorrágica da dengue, chegando a atingir em anos mais recentes valores superiores a 10% 2,3 .No Brasil, a dengue é uma doença de notificação compulsória, devendo ser comunicada às autoridades sanitárias locais por profissionais de saúde e responsáveis por instituições públicas ou particulares de saúde 4 . A vigilância e o controle da dengue ocorrem de forma padronizada e descentralizada em todos os municípios do país, e os instrumentos mais relevantes aos sistemas de informação em saúde existentes são as fichas de notificação e investigação de casos e óbitos suspeitos de dengue, bem como a Declaração de Óbito 5,6 . No Brasil, atualmente, existem três sistemas de informação que incluem dados de mortalidade por dengue, são eles:
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.