Risk of Adverse Infant Outcomes Associated with Maternal Tuberculosis in a Low Burden Setting: A Population-Based Retrospective Cohort Study
Table 2
Risk of small for gestational age, low birth weight, and prematurity for infants born to women with tuberculosis-associated ICD-9 diagnosis during delivery hospitalization, Washington State, 1987–2012.
Outcome
Maternal TB ()
No maternal TB ()
Unadjusted RR
Adjusted RR
(%)
(%)
uRR
(95% CI)
aRR
(95% CI)
Birth weight (grams)
LBW (<2,500)
15 (11.9)
24 (4.5)
2.64
(1.34–5.20)
3.74
(1.40–10.00)
Typical (2,500–3,999)
105 (78.4)
443 (82.7)
1.00
Referent
1.00
Referent
Macrosomia (≥4,000)
14 (10.5)
69 (12.9)
0.86
(0.46–1.58)
1.39
(0.59–3.30)
Weight for gestational age
SGA (<10%)
21 (15.8)
47 (8.9)
1.95
(1.11–3.41)
1.96
(0.91–4.22)
Typical (10–90%)
100 (75.2)
436 (82.4)
1.00
Referent
1.00
Referent
LGA (>90%)
12 (9.0)
46 (8.7)
1.13
(0.58–2.23)
1.69
(0.63–4.55)
Gestational age (weeks)
<37 (preterm)
13 (9.8)
32 (6.0)
1.74
(0.89–3.43)
1.01
(0.39–2.58)
37–41
112 (84.9)
481 (90.9)
1.00
Referent
1.00
Referent
≥42 (postterm)
7 (5.3)
16 (3.0)
1.91
(0.54–6.74)
1.91
(0.53–6.75)
Numbers may not add up to totals due to missing data. Model adjusted for maternal age, income, parity, and maternal country of origin World Bank gross national income index category.
