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Volume 23, Number 3—March 2017
Research

Mycobacterium tuberculosis Transmission among Elderly Persons, Yamagata Prefecture, Japan, 2009–2015

Junji SetoComments to Author , Takayuki Wada, Yu Suzuki, Tatsuya Ikeda, Katsumi Mizuta, Taro Yamamoto, and Tadayuki Ahiko
Author affiliations: Yamagata Prefectural Institute of Public Health, Yamagata, Japan (J. Seto, Y. Suzuki, T. Ikeda, K. Mizuta, T. Ahiko); Nagasaki University, Nagasaki, Japan (T. Wada, T. Yamamoto)

Main Article

Table 4

Risk factors for nonlinked results of contact tracings among 128 TB cases clustered in Yamagata Prefecture, Japan, 2009–2015

Characteristic No. (%) cases with epidemiologic link
Odds ratio (95% CI)*
Linked or possibly linked Not linked Univariate Multivariate†
Patient age group
<59 37 (52.9) 14 (24.1) 1.0 1.0
>60
33 (47.1)
44 (75.9)

3.5 (1.6–7.6)
2.9 (1.3–6.6)
Patient sex
F 39 (55.7) 20 (34.5) 1.0 1.0
M
31 (44.3)
38 (65.5)

2.4 (1.2–4.9)
2.2 (0.994–4.9)
Mycobacterium tuberculosis lineage
Non-Beijing 16 (22.9) 22 (37.9) 15.8 (3.3–76.9) 12.5 (2.5–63.3)
Ancient Beijing 31 (44.3) 34 (58.6) 12.6 (2.7–57.9) 10.1 (2.1–48.2)
Modern Beijing 23 (32.9) 2 (3.4) 1.0 1.0

*CIs that do not overlap the null value of odds ratio = 1 are shown in bold.
†Adjusted for the other factors used in the multivariate model.

Main Article

Page created: February 17, 2017
Page updated: February 17, 2017
Page reviewed: February 17, 2017
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