Table 5.

Perinatal and Sociodemographic Variables in Preterm and Normal Birth Weight (NBW) Survivors Assessed at 5 Years of Age

VariablePreterm
(N = 213)
NBW
(N = 229)
Statistical
Significance
Perinatal variables
 Antenatal steroids150 (70.4%)3/227 (1.3%)χ2= 228, P < .0001
 Multiple birth67 (31.5%)6 (2.6%)χ2 = 64.5, P < .0001
 Cesarean section58 (27.2%)27 (11.9%)χ2 = 15.6, P < .001
 Female109 (51.2%)125 (54.6%)χ2 = 0.4, NS
 Birth weight (g)*885 (174)3396 (440)2510 (2447, 2574)
 Gestational age (wk)*25.8 (1.1)39.2 (1.4)13.3 (13.1, 13.6)
Sociodemographic variables
 Asian mother18 (8.5%)12 (5.2%)χ2 = 1.3, NS
 Higher social class110 (51.6%)129 (56.3%)χ2 = 0.8, NS
 No English-speaking at home13 (6.1%)9 (3.9%)χ2 = 0.7, NS
  • Data are n (%), unless otherwise indicated.

    NS indicates not significant.

  • * Mean (SD).

  • Mean difference (95% CI).