|
Child factors
|
|
< 1 year
|
48 (15.2)
|
50 (21.8)
|
|
1 year
|
66 (20.9)
|
41 (17.9)
|
|
2 years
|
71 (22.5)
|
44 (19.2)
|
|
3 years
|
73 (23.1)
|
56 (24.5)
|
|
4 years
|
58 (18.4)
|
38 (16.6)
|
|
Male
|
162 (51.3)
|
119 (52.2)
|
|
Black African (vs. mixed race)
|
52 (16.5)
|
101 (44.1)**
|
|
HIV-positive
|
1 (0.3)
|
8 (3.7)*
|
|
BCG scar/vaccination documented
|
310 (98.1)
|
181 (81.2)**
|
|
Previous tuberculosis treatment
|
8 (2.5)
|
21 (9.2)*
|
|
Weight for age (z-score) < −2
|
32 (10.1)
|
23 (10.1)
|
|
Sleeps in same room as TB source case
|
79 (25.3)
|
34 (15.0)**
|
|
Sleeps in same bed as TB source case
|
20 (6.4)
|
57 (25.2)**
|
|
Adult source case /household factors
|
|
Source case sputum acid-fast bacilli smear-positive
|
181 (62.9)
|
180 (80.0)**
|
|
Household tobacco smoke exposure
|
245 (80.4)
|
145 (63.3)**
|
|
Mean socioeconomic index (x/11), n (standard deviation)
|
4.0 (2.6)
|
4.1 (2.5)
|
|
Clinical states
|
|
Exposure no infection
|
205 (65.7)
|
125 (61.3)
|
|
Infection no disease
|
80 (25.6)
|
86 (38.1)*
|
|
Disease
|
27 (8.7)
|
15 (6.6)
|
