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Volume 24, Number 12—December 2018
Dispatch

Excess Mortality and Causes Associated with Chikungunya, Puerto Rico, 2014–2015

André Ricardo Ribas FreitasComments to Author , Maria Rita Donalisio, and Pedro María Alarcón-Elbal
Author affiliations: Secretaria de Saúde de Campinas, Campinas, Brazil (A.R.R. Freitas); Faculdade de Medicina São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas (A.R.R. Freitas); Universidade Estadual de Campinas, Campinas (M.R. Donalisio); Universidad Iberoamericana, Instituto de Medicina Tropical & Salud Global, Santo Domingo, Dominican Republic (P.M. Alarcón-Elbal)

Main Article

Table 1

Expected and observed deaths during a chikungunya epidemic, Puerto Rico, July–December 2014

Cause of death (code)* Observed deaths Expected deaths Difference† Relative risk 95% CI 99% CI p value
Acute myocardial infarction (I21–I22) 735 783 −48 0.938 0.866–1.017 0.844–1.043 0.06
All other forms of chronic ischemic heart disease (I20, I25.1–I25.9) 963 787 176 1.224 1.139–1.315 1.114–1.346 <0.01
Alzheimer's disease (G30) 1,050 1,020 30 1.030 0.962–1.102 0.942–1.126 0.20
Diabetes mellitus (E10–E14) 1,761 1,623 138 1.085 1.030–1.144 1.012–1.163 <0.01
Hypertensive heart disease (I11) 366 376 −10 0.974 0.869–1.092 0.838–1.132 0.33
Other chronic obstructive pulmonary disease (J44) 382 410 −28 0.932 0.833–1.041 0.805–1.078 0.11
Pneumonia due to other or unspecified organisms (J16, J18) 392 396 −4 0.990 0.886–1.105 0.856–1.145 0.43
Renal failure (N17–N19) 500 479 21 1.045 0.947–1.153 0.918–1.189 0.19
Septicemia (A40–A41) 456 418 38 1.091 0.984–1.210 0.952–1.250 0.05
Neoplasms (C00–D49) 2,849 2,849 0 1.000 0.960–1.042 0.947–1.055 0.50

*Causes of death were grouped according to the List of 358 Selected Causes of Death of the National Center for Health Statistics (https://ww.cdc.gov/nchs/data/dvs/Multiple_Cause_Record_Layout_2015.pdf). Codes are from the International Classification of Diseases, 10th Revision.
†Observed deaths (no. cases)/expected deaths (no. cases).

Main Article

Page created: November 19, 2018
Page updated: November 19, 2018
Page reviewed: November 19, 2018
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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