The Incidence of Non-Tuberculous Mycobacteria in Infants in Kenya
Table 1
Baseline characteristics of study sample, infants with presumptive TB and infants with NTM isolated; and comparison between infants with presumptive TB with and without NTM.
Characteristic
Study Sample (n=2900)
Investigated for Presumptive TB (n =742) (N, column %)
NTM positive (n=19) (N, row%)
OR (95%CI)
Gender
Female
1412
358 (48%)
10 (2.8%)
1 (ref)
Male
1488
384 (52%)
9 (2.3%)
0.85 (0.35, 2.11)
Enrolment weight
Normal
2674
667 (90%)
16 (2.4%)
1 (ref)
low
226
75 (10%)
3 (4.1%)
2.24 (0.65, 7.73)
Place of birth
Home
1840
510 (69%)
11 (2.2%)
0.77 (0.31, 1.93)
Health facility
1038
229 (31%)
8 (3.5%)
1 (ref)
missing
22
3 (<1%)
Maternal HIV status
HIV negative
2451
598 (81%)
16 (2.7%)
1 (ref)
HIV positive
401
127 (17%)
3 (2.4%)
0.88 (0.25, 3.08)
Unknown
48
17 ( 2%)
Infant HIV status
HIV negative
2827
708 (95%)
18 (2.5%)
1 (ref)
HIV positive
73
34 (5%)
1 (2.9%)
2.17 (0.29, 16.5)
Maternal age category
<19
635
152 (21%)
1 (0.7%)
1 (ref)
20-29
1533
384 (52%)
16 (4.2%)
6.69 (0.89, 50.5)
>29
732
206 (28%)
2 (1.0%)
1.74 (0.16, 19.2)
Maternal Occupation
Unemployed
1676
409 (55%)
11 (2.7%)
1 (ref)
Farmer
864
250 (34%)
5 (2.0%)
0.88 (0.31, 2.54)
Business
260
61 (8%)
2 (3.3%)
1.17 (0.26, 5.32)
Salaried
71
13 (2%)
1 (7.7%)
2.16 (0.28, 17.0)
Unknown
29
9 (1%)
Housing Type
Mud House
1912
523 (71%)
11 (2.1%)
1(ref)
Semi-permanent
527
125 (17%)
4 (3.2%)
1.32 (0.42, 4.17)
Permanent
426
84 (11%)
4 (4.8%)
1.64 (0.52, 5.17)
Other
6
1 (0.1%)
Unknown
29
9 (1.2%)
Number of Siblings
None
649
129 (17%)
3 (2.3%)
1 (ref)
One to three
1497
391 (53%)
14 (3.6%)
2.03 (0.58, 7.10)
>3
754
222 (30%)
2 (0.9%)
0.57 (0.10, 3.44)
Vaccination Status at 6 weeks
Complete
2205
682 (92%)
16(2.4%)
0.48 (0.11, 2.10)
Incomplete
133
29 (4%)
2(7.0%)
1 (ref)
Missing
562
31 (4%)
1(3.2%)
Odds of being NTM case among those investigated for presumptive TB, given the category of baseline characteristic.
