Chikungunya Death Risk Factors in Brazil, in 2017: a case-control study

A matched case-control study was conducted (1:2), by sex, age (± 5 years) and neighborhood. Cases were CHIK deaths that occurred between January 1 and December 31, 2017, in Fortaleza, Brazil, and which were laboratory confirmed. Controls were laboratory confirmed CHIK patients occurring in the same neighborhood and in the same period, but which did not progress to death.

本研究开展了1:2配比的病例对照研究，匹配因素为性别、年龄（±5岁）以及居住社区。病例为2017年1月1日至12月31日期间，巴西福塔莱萨市经实验室确诊的基孔肯雅热（CHIK）死亡病例；对照则为同期、同居住社区内经实验室确诊的基孔肯雅热患者，但未进展至死亡结局。