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Volume 17, Number 3—March 2011

Dispatch

Molecular Epidemiology of Mycobacterium tuberculosis, Buenos Aires, Argentina

Ximena GonzaloComments to Author , Marta Ambroggi, Ezequiel Cordova, Tim Brown, Susana Poggi, and Francis Drobniewski
Author affiliations: Author affiliations: Hospital de Infecciosas Francisco Javier Muñiz, Buenos Aires, Argentina (X. Gonzalo, M. Ambroggi, E. Cordova, S. Poggi); Clinical Sciences Research Center, London, UK (T. Brown, F. Drobniewski)

Main Article

Table

Demographic information for 157 patients in a study of the molecular epidemiology of TB, Buenos Aires, Argentina, June 1, 2006–April 30, 2007*

Demographic characteristic Patients with MDR TB, n = 57, no. (%)† Patients with non–MDR TB, n = 100, no. (%)‡ p value, OR (95% CI)§
Sex
M 35 (61) 70 (70) 0.271, 1.4667 (0.7404–2.9055)
F
22 (39)
30 (30)

Location
Buenos Aires area 46 (81) 95 (95) 0.004, 4.5435 (1.491–13.845)
Other
11 (19)
5 (5)

Country of birth
Argentina 43 (75) 66 (66) 0.2176, 0.632 (0.3041–1.3133)
Bolivia 6 (11) 20 (20)
Peru 7 (12) 8 (8)
Paraguay 0 3 (3)
Uruguay 1 (2) 1 (1)
Chile 0 1 (1)
Missing data
0
1 (1)

Education
Illiterate or some primary 16 (28) 32 (32) 0.2059, 0.5185 (0.1860–1.4456)
Some secondary or tertiary 7 (12) 27 (27)
Missing data
34 (59)
41 (41)

Occupation
Unemployed 7 (12)
Construction and manual worker 20 (35)
Factory worker 4 (7) 14 (14)
Health care worker 1 (2) 1 (1)
Education, i.e., student and teacher 2 (4) 4 (4)
Housewife 6 (11) 5 (5)
Missing data
17 (30)
23 (23)

HIV infection
Positive 25 (44) 27 (27) 0.04, 0.4737 (0.2308–0.9722)
Negative 25 (44) 57 (57)
Missing data
7 (12)
16 (16)

Nature of TB contact
Close (i.e., household, family, co-worker) 10 (18) 32 (32)
Institution (i.e., hospital, prison) 2 (4) 3 (3)
Casual (e.g., acquaintance) 5 (9) 3 (3)
Missing data
40 (70)
62 (62)

TB presentation
Pulmonary 36 (63) 61 (61) 0.7184, 1.1553 (0.5323–2.5073)
Nonpulmonary 15 (26) 22 (22)
Missing data 6 (11) 17 (17)

*TB, tuberculosis; MDR, multidrug resistant; OR, odds ratio; CI, confidence interval; IQR, interquartile range.
†Median age, y (IQR) for patients with MDR TB: 34 (27–40).
‡Median age, y (IQR) for patients with non-MDR TB: 28.5 (23.0–37.0).
§χ2 test.

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