Table 2

Weight SD scores (SDS) at birth, 36 weeks postmenstrual age (PMA) and change in SDS (95% CI) from birth to 36 weeks PMA for all infants, female-only and male-only infants (only infants who were still inpatient at 36 weeks PMA and beyond are included in this analysis)

WeightSD scores (±95% CI)
All infants
 GA (weeks)232425262728293031
 Birth0.230.13−0.160.29−0.33−0.48−0.42−0.57−0.66
 36 weeks−0.79−0.42−0.29−0.10−0.60−0.63−0.59−0.84−0.78
 SDS change−1.02
(−1.37 to −0.67)
−0.54
(−0.99 to −0.10)
−0.13
(−0.48 to 0.23)
−0.38
(−0.70 to −0.07)
−0.27
(−0.76 to 0.22)
−0.15
(−0.42 to 0.13)
−0.18
(−0.56 to 0.20)
−0.27
(−0.53 to −0.01)
−0.12
(−0.46 to 0.22)
Female
 GA (weeks)232425262728293031
 Birth0.35−0.28−0.280.47−0.03−0.37−0.03−0.57−0.75
 36 weeks−0.73−0.15−0.23−0.280.39−0.76−0.42−0.85−1.16
 SDS change−1.08
(−1.42 to −0.75)
0.13
(−0.40 to 0.66)
0.05
(−0.50 to 0.61)
−0.75
(−1.33 to −0.17)
0.41
(−0.26 to 1.08)
−0.39
(−0.78 to 0.00)
−0.39
(−1.73 to 0.96)
−0.28
(−0.63 to 0.06)
−0.41
(−0.88 to 0.07)
Male
 GA (weeks)232425262728293031
 Birth0.000.29−0.070.24−0.47−0.58−0.55−0.58−0.56
 36 weeks−0.89−0.53−0.32−0.06−0.84−0.50−0.65−0.82−0.35
 SDS change−0.89
(−1.94 to 0.15)
−0.83
(−1.33 to −0.32)
−0.25
(−0.71 to 0.21)
−0.30
(−0.65 to 0.05)
−0.37
(−0.94 to 0.20)
0.08
(−0.23 to 0.40)
−0.10
(−0.48 to 0.28)
−0.24
(−0.66 to 0.17)
0.21
(−0.26 to 0.67)
  • GA, gestational age.