Table 2

Mortality of very low birthweight (VLBW) babies and subgroups

GroupCHDNo CHDRR95% CIp Value*
Values in parentheses are percentages.
2 test.
CHD, Congenital heart disease; RR, relative risk; CI, confidence interval; ELBW, extremely low birth weight; IUGR, intrauterine growth retardation.
VLBW19 (40.4)247 (12.5)3.22.2 to 4.7<0.0001
ELBW11 (47.8)189 (25.6)1.91.2 to 2.90.02
1001–1500 g8 (33.3)58 (4.7)7.13.8 to 13.2<0.0001
Multiple gestation5 (29.4)65 (11.5)2.61.2 to 5.50.03
IUGR8 (44.4)37 (11.1)42.2 to 7.3<0.0001