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Volume 26, Number 6—June 2020
Synopsis

Epidemiologic Changes of Scrub Typhus in China, 1952–2016

Zhongjie Li1, Hualei Xin1, Junling Sun1, Shengjie Lai, Lingjia Zeng, Canjun Zheng, Sarah E. Ray, Nicole Davis Weaver, Liping Wang, Jianxing YuComments to Author , Zijian Feng2, Simon I. Hay, and George F. Gao2
Author affiliations: Chinese Center for Disease Control and Prevention, Beijing, China (Z. Li, H. Xin, S. Lai, L. Zeng, C. Zheng, L. Wang, J. Yu, Z. Feng, G.F. Gao); Qingdao City Center for Disease Control and Prevention, Shandong, China (H. Xin); University of Southampton, Southampton, UK (S. Lai); University of Washington, Seattle, Washington, USA (S.E. Ray, N.D. Weaver, S.I. Hay); Chinese Academy of Sciences, Beijing (G.F. Gao)

Main Article

Table 2

Risk factors associated with death from scrub typhus, China, 2006–2016

Factor No. cases No. deaths Case-fatality ratio Crude odds ratio (95% CI) Adjusted odds ratio (95% CI)*
Sex
F 49,907 22 0.04 1.00 1.00
M
 43,574
 35
 0.08
 1.82 (1.07–3.11)
 1.75 (1.02–3.01)
Age group, y
<40 25,261 9 0.04 1.00 1.00
40–59 37,660 19 0.05 1.50 (0.68–3.30) 2.86 (1.22–6.69)
>60
 30,560
 29
 0.09
 2.70 (1.27–5.72)
 5.88 (2.55–13.55)
Residence
Rural 80,329 37 0.05 1.00 1.00
Urban
 11,753
 20
 0.17
 3.31 (1.92–5.70)
 1.89 (1.05–3.42)
Region
Middle-east 25,186 2 0.01 1.00 1.00
Southeast 45,043 44 0.10 12.31 (2.98–50.79) 10.05 (2.41–41.86)
Southwest 23,202 11 0.05 5.97 (1.32–26.95) 9.48 (2.05–43.94)
North and west
 50
 0
 0
 NA
 NA
Occupation
Farmer 68,116 24 0.04 1.00 1.00
Nonfarmer
 25,365
 33
 0.13
 3.7 (2.18–6.25)
 3.56 (1.97–6.43)
Time from illness onset to diagnosis, d
<2 20,775 8 0.04 1.00 1.00
2–7 42,875 22 0.05 1.33 (0.59–2.99) 1.67 (0.74–3.77)
>8 29,831 27 0.09 2.35 (1.07–5.18) 2.36 (1·07–5.19)

*Result from multivariable logistic regression. Boldface type indicates significance (p<0.05). NA, not available.

Main Article

1These first authors contributed equally to this article.

2These senior authors contributed equally to this article.

Page created: May 18, 2020
Page updated: May 18, 2020
Page reviewed: May 18, 2020
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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