Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 27, Number 10—October 2021
Research

Burden of Influenza-Associated Respiratory Hospitalizations, Vietnam, 2014–2016

Nguyen Cong Khanh1Comments to Author , Ashley L. Fowlkes1Comments to Author , Ngu Duy Nghia, Tran Nhu Duong, Ngo Huy Tu, Tran Anh Tu, Jeffrey W. McFarland, Thoa Thi Minh Nguyen, Nga Thu Ha, Philip L. Gould, Pham Ngoc Thanh, Nguyen Thi Huyen Trang, Vien Quang Mai, Phuc Nguyen Thi, Satoko Otsu, Eduardo Azziz-Baumgartner, Dang Duc Anh, and A. Danielle Iuliano
Author affiliations: National Institute of Hygiene and Epidemiology, Hanoi, Vietnam (K.C. Nguyen, N.D. Ngu, D.N. Tran, T.H. Ngo, T.A. Tran, A.D. Dang); US Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A.L. Fowlkes, J.W. McFarland, E. Azziz-Baumgartner, A.D. Iuliano); US Centers for Disease Control and Prevention, Hanoi, Vietnam (T.T.M. Nguyen, N.T. Ha, P.L. Gould); Tay Nguyen Institute of Hygiene and Epidemiology, Buon Ma Thuot, Vietnam (T.N. Pham); Pasteur Institute Ho Chi Minh, Ho Chi Minh City, Vietnam (T.T.H. Nguyen); Pasteur Institute Nha Trang, Nha Trang, Vietnam (M.Q. Vien); World Health Organization Vietnam Country Office, Hanoi (N.T. Phuc, S. Otsu)

Main Article

Table 2

Provincial estimates of influenza-associated ARI and SARI hospitalizations and rates for all ages, Vietnam, 2014–2016*

Year and province ARI Hospitalizations
 Estimated SARI Hospitalizations
No. No. (95% UI)
 No. (95% UI)
Rate Influenza-associated rate No. Rate Influenza-associated rate
Mean annual
Dak Lak 20,746 1,107 (1,091–1,122) 183 (159–206) 14,093 (13,861–14,308) 752 (739–763) 121 (104–139)
Dong Thap 22,582 1,314 (1,297–1,330) 224 (200–247) 13,561 (13,352–13,772) 789 (777–801) 133 (118–148)
Khanh Hoa 20,433 1,665 (1,645–1,686) 284 (256–312) 12,760 (12,558–12,957) 1,040 (1,023–1,056) 177 (157–197)
Quang Ninh
 12,620
 1,030 (1,011–1,046)
 197 (180–215)
7,423 (7,280–7,553)
 606 (594–616)
 113 (103–124)
2014
Dak Lak 18,592 1,004 (988–1,021) 103 (90–116) 12,711 (12,487–12,929) 687 (675–698) 66 (57–75)
Dong Thap 22,188 1,299 (1,281–1,319) 151 (134–171) 13,403 (13,178–13,647) 785 (772–799) 90 (80–102)
Khanh Hoa 18,788 1,546 (1,523–1,570) 195 (174–219) 11,793 (11,578–12,003) 971 (953–988) 119 (105–135)
Quang Ninh
 11,171
 921 (902–938)
 137 (122–153)
6,877 (6,714–7,037)
 567 (553–580)
 83 (73–94)
2015
Dak Lak 19,605 1,046 (1,030–1,061) 192 (145–243) 13,346 (13,116–13,572) 712 (700–724) 133 (96–173)
Dong Thap 20,655 1,202 (1,185–1,219) 219 (171–269) 12,384 (12,168–12,597) 720 (708–733) 131 (100–163)
Khanh Hoa 20,919 1,705 (1,682–1,728) 292 (239–344) 13,055 (12,837–13,273) 1,064 (1,046–1,082) 184 (148–220)
Quang Ninh
 11,216
 915 (893–935)
 161 (136–188)
6,614 (6,450–6,768)
 540 (526–552)
 93 (76–111)
2016
Dak Lak 24,041 1,266 (1249–1,283) 251 (228–272) 16,220 (15,974–16,467) 854 (841–867) 164 (149–178)
Dong Thap 24,903 1,440 (1422–1,459) 299 (273–324) 14,896 (14,660–15,134) 861 (847–875) 177 (161–193)
Khanh Hoa 21,593 1,743 (1720–1,768) 363 (332–397) 13,434 (13,196–13,651) 1,084 (1,065–1,102) 226 (205–250)
Quang Ninh 15,473 1,251 (1227–1,273) 291 (264–321) 8,776 (8,579–8,956) 709 (693–724) 162 (149–177)

*Rates are given per 100,000 population and age-adjusted. Rates were calculated regionally using reported ARI hospitalizations multiplied by the percentage of patients meeting the SARI criteria upon medical chart review. Regional hospitalization counts were multiplied by the national percentage of specimens testing influenza-positive from SARI sentinel surveillance, adjusted by age and month, and then divided by the combined population of the regions. ARI, acute respiratory infection; SARI, severe acute respiratory infection. UI, uncertainty interval.

Main Article

1These authors contributed equally to this article.

Page created: August 20, 2021
Page updated: September 19, 2021
Page reviewed: September 19, 2021
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.
file_external