Table 2.

Results of Regression Models of Birth Weight (g) and 95% CI for 434 Infants Who Survived the Neonatal Period in Butare, Rwanda, 1989–1994

Coefficient95% CICoefficient95% CICoefficient95% CI
LowerUpperLowerUpperLowerUpper
Infant
HIV status
Mother positive
Infant infected (group 1) −235 −376−94−187 −312−62−154 −271−38
Infant uninfected (group 2)000
Mother negative38−4512125−4998−1−7370
Gestational age (wk)
<38−647 −800−493−609 −751−468
38–39−285 −369−200−243 −322−165
4000
>40146 50243106* 16196
Maternal factors
Age (y)
15–19−229 −394−64−146−2930−23−162115
20–24000
25–2921−6710829−49106−64−15122
≥3078−5020575−37187−47−18592
Parity
0−162 −255−68−159 −241−77−154 −239−69
1–2000
≥347−4814229−5511339−58137
Cigarettes/d
00000
≥1−38−177101−9−131114−32−14682
Family Income (monthly FRw)
0–499−33−12559−23−103588−6884
500–2499000
≥2500100020085−417351−32135
MUAC (cm)
<22−160 −255−66−128 −212−44−80−1612
22–23000
≥24149 59239129 49209109 31187
Height (per cm increase)15 92212 7189 314
Hematocrit (per unit increase)16 92314 82012 618
• * P ≤ .05;

• P ≤ .01;

• P ≤ .001.

• § Model including gestational age, infant's HIV status, maternal age, parity, income, cigarette-smoking, height, hematocrit, and MUAC.

• Unadjusted difference between groups 1 and 2 is 233 g in Table 1 because means are based on 513 infants.