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Volume 15, Number 10—October 2009

Research

Mycobacterium tuberculosis Genotype and Case Notification Rates, Rural Vietnam, 2003–2006

Tran N. Buu, Mai N.T. Huyen, Nguyen N.T. Lan, Hoang T. Quy, Nguyen V. Hen, Matteo Zignol, Martien W. Borgdorff, Dick van Soolingen, and Frank G.J. CobelensComments to Author 
Author affiliations: Pham Ngoc Thach Tuberculosis and Lung Disease Hospital, Ho Chi Minh City, Vietnam (T.N. Buu, M.N.T. Huyen, N.T.N. Lan, H.T. Quy); Tien Giang Provincial Tuberculosis and Lung Disease Hospital, My Tho, Vietnam (N.V. Hen); World Health Organization, Geneva, Switzerland (M. Zignol); KNCV Tuberculosis Foundation, The Hague, the Netherlands (M.W. Borgdorff, F.G.J. Cobelens); Academic Medical Centre, Amsterdam, the Netherlands (M.W. Borgdorff, F.G.J. Cobelens); National Institute of Public Health and the Environment, Bilthoven, the Netherlands (D. van Soolingen)

Main Article

Table 1

Distribution of Mycobacterium tuberculosis genotypes among patients, Vietnam, 2003–2006

Characteristic
No. patients
Genotype
Beijing

Vietnam

Other
No. (%) patients
p value*
No. (%) patients
p value*
No. (%) patients
p value*
Total 2,097 681 (32.5) 1,063 (50.7) 353 (16.8)
Year
2003 369 115 (31.2) 0.396 190 (51.5) 0.835 64 (17.3) 0.793
2004 628 207 (33.0) 319 (50.8) 102 (16.2)
2005 550 192 (34.9) 270 (49.1) 88 (16.0)
2006
550
167 (30.4)


284 (51.6)


99 (18.0)

Sex
M 1,576 494 (31.3) 0.051 826 (52.4) 0.006 256 (16.2) 0.197
F
521
187 (35.9)


237 (45.5)


97 (18.6)

Age group, y
15–24 177 93 (52.5) <0.001 52 (29.4) <0.001 32 (18.1) 0.854
25–34 277 98 (35.4) 130 (46.9) 49 (17.7)
35–44 426 137 (32.2) 216 (50.7) 73 (17.1)
45–54 380 120 (31.6) 205 (53.9) 55 (14.5)
55–64 266 92 (34.6) 128 (48.1) 46 (17.3)
>65 571 141 (24.7) 332 (58.1) 98 (17.2)

*By χ2 test for comparison of proportions of each genotype by year, sex, and age.

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