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Volume 12, Number 9—September 2006
Research

Risk for Tuberculosis among Children

Hiroshi Nakaoka*, Lovett Lawson*†, S. Bertel Squire*, Brian Coulter*, Pernille Ravn‡, Inger Brock‡, C. Anthony Hart§, and Luis E. Cuevas*Comments to Author 
Author affiliations: *Liverpool School of Tropical Medicine, Liverpool, United Kingdom; †Zankli Medical Centre, Abuja, Nigeria; ‡University Hospital, Hvidovre, Denmark; §University of Liverpool, Liverpool, United Kingdom

Main Article

Table 1

Characteristics of children by study group*

Characteristic Controls (N = 46),
no. (%) Smear status of index case-patients p value†
Smear-negative tuberculosis (n = 83), no. (%) Smear-positive tuberculosis (n = 78), no. (%)
Mean (SD) age, y 6.2 (3.5) 7.5 (3.8) 7.9 (3.8) 0.04
Male/female (% male) 22/24 (48) 39/44 (47) 34/44 (44) NS
History of Mycobacterium bovis BCG 42 (91) 77 (93) 68 (87) NS
BCG scar present 18 (39) 39 (47) 19 (24) 0.01
Relationship to index case-patient
Son or daughter NA 47 (57) 59 (76) <0.01
Grandchild NA 7 (8) 0
Sibling NA 9 (11) 15 (19)
Niece or nephew NA 14 (17) 4 (5)
Other NA 6 (7) 0
Mean (SD) hours in contact per day NA 9.6 (4.9) 11.2 (5) 0.04
Shares bedroom with index case NA 28 (34) 50 (64) <0.01
Mean (SD) number people per bedroom 4.4 (1.8) 3.3 (1.2) 4.3 (2) <0.01

*SD, standard deviation; NS, not significant; NA, not applicable.
†Comparison of proportions and means between the 3 groups unless data do not apply to the control group.

Main Article

Page created: November 17, 2011
Page updated: November 17, 2011
Page reviewed: November 17, 2011
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