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Table 3 Risk factors for low birth weight (<2500g) and preterm birth among 1132 live-born infants a

From: Pregnancy loss and role of infant HIV status on perinatal mortality among HIV-infected women

 

No. of LBW (%)

Relative risk (95% CI)

No. of preterm birth (%)

Relative risk (95% CI)

Infant Factors

    

Gender

    

Male

79/587 (13.5)

0.88 (0.66–1.17)

97/583 (16.6)

1.03 (0.79–1.35)

Female

82/535 (15.3)

 

85/528 (16.1)

 

Maternal Health Factors

    

CD4 cells/mm 3

    

<350

105/611 (17.2)

1.57 (1.16–2.12)

108/608 (17.8)

1.24 (0.94–1.63)

≥350

56/510 (11.0)

 

72/503 (14.3)

 

Hemoglobin, g/dl

    

<10

66/330 (20.0)

1.67 (1.25–2.23)

54/325 (16.6)

1.04 (0.78–1.40)

≥10

93/778 (12.0)

 

123/773 (15.9)

 

Plasma viral load, copies/ml

    

≥50,000

96/505 (19.0)

1.82 (1.36–2.45)

94/500 (18.8)

1.32 (1.01–1.72)

<50,000

64/614 (10.4)

 

87/609 (14.3)

 

Clinical stage

    

Symptomatic

73/431 (16.9)

1.33 (1.00–1.78)

68/427 (15.9)

0.96 (0.73–1.26)

Asymptomatic

88/693 (12.7)

 

114/687 (16.6)

 

History of tuberculosis

    

Yes

28/106 (26.4)

2.02 (1.42–2.88)

23/105 (21.9)

1.39 (0.94–2.05)

No

133/1018 (13.1)

 

159/1009 (15.8)

 

History of having swollen glands

    

Yes

29/138 (21.0)

1.57 (1.09–2.25)

34/138 (24.6)

1.62 (1.17–2.25)

No

132/984 (13.4)

 

148/975 (15.2)

 

BMI, kg/m 2

    

<18.5

37/150 (24.7)

2.41 (1.71–3.39)

34/146 (23.3)

1.76 (1.25–2.47)

≥18.5

88/858 (10.3)

 

112/845 (13.3)

 

Socioeconomic and Clinical Factors

    

Age, year

    

<20

13/101 (12.9)

0.92 (0.54–1.57)

23/101 (22.8)

1.35 (0.92–2.00)

20–30

115/824 (14.0)

1.0

137/814 (16.8)

1.0

>30

33/199 (16.6)

1.19 (0.83–1.69)

22/199 (11.1)

0.66 (0.43–1.00)

Education

    

Some (0–8th grade level)

101/702 (14.4)

1.01 (0.75–1.36)

127/692 (18.4)

1.41 (1.05–1.89)

HS grade (≥9th grade level)

60/422 (14.2)

 

55/422 (13.0)

 

Electricity

    

No

102/671 (15.2)

1.17 (0.87–1.57)

119/668 (17.8)

1.26 (0.95–1.67)

Yes

59/453 (13.0)

 

63/446 (14.1)

 

Food run out at least 1 day in last month

    

Yes

32/244 (13.1)

0.89 (0.62–1.28)

46/245 (18.8)

1.20 (0.89–1.62)

No

129/879 (14.7)

 

136/868 (15.7)

 
  1. a All analyses are unadjusted.