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Volume 11, Number 1—January 2005

Dispatch

Mycobacterium tuberculosis Beijing Genotype, Northern Malawi

Judith R. Glynn*Comments to Author , Amelia C. Crampin*†, Hamidou Traore*, Malcolm D. Yates‡, Frank D. Mwaungulu†, Bagrey M. Ngwira†, Steven D. Chaguluka†, Donex T. Mwafulirwa†, Sian Floyd*, Caroline Murphy‡, Francis A. Drobniewski‡, and Paul E.M. Fine*
Author affiliations: *London School of Hygiene and Tropical Medicine, London, United Kingdom; †Karonga Prevention Study, Chilumba, Malawi; ‡Kings College Hospital (Dulwich), London, United Kingdom

Main Article

Table

Comparison of persons with Beijing and non-Beijing genotype Mycobacterium tuberculosis

Characteristic Beijing genotype, n (%) Other genotypes, n (%) p value
Sex 0.001
Male 10 (22.7) 472 (47.9)
Female 34 (77.3) 513 (52.1)
Age group 0.3
<15 2 (4.6) 16 (1.6)
15–29 17 (38.6) 306 (31.1)
30–44 16 (36.4) 423 (42.9)
>45 9 (20.5) 240 (24.4)
Born in Malawi 0.08
Yes 38 (90.5) 747 (79.2)
No 4 (9.5) 196 (20.8)
Moved in last 5 y 0.8
No move 16 (40.0) 343 (41.2)
Within district 10 (25.0) 188 (22.6)
Outside district 9 (22.5) 226 (27.1)
Outside country 5 (12.5) 76 (9.1)
HIV status 0.4
Positive 15 (57.7) 396 (65.6)
Negative 11 (42.3) 208 (34.4)
Previous tuberculosis (TB) 0.9
Yes 3 (6.8) 74 (7.6)
No 41 (93.2) 904 (92.4)
BCG scar 0.7
Yes 23 (74.2) 486 (69.7)
No 6 (19.4) 176 (25.3)
Doubtful 2 (6.5) 35 (5.0)
Contact with TB patient in district 0.6
Yes 22 (50.0) 453 (46.0)
No 22 (50.0) 532 (54.0)
Type of TB 0.4
Smear-positive pulmonary 33 (75.0) 711 (72.2)
Smear-negative pulmonary 10 (22.7) 202 (20.5)
Extrapulmonary 1 (2.3) 72 (7.3)
Drug resistance 0.2
Sensitive 44 (100) 920 (93.9)
Resistant isoniazid only 0 38 (3.9)
Resistant isoniazid plus 0 22 (2.2)
Died during treatment 0.7
Yes 13 (32.5) 224 (29.6)
No 27 (67.5) 532 (70.4)

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