Table 6: Associations between size at birth and ultrasound abdominal depth measurements at 3 months (487 infants) and 12 months (495 infants).

Birth weight SDS
Mean skinfold thickness SDS at birth
B ± SE1 valueB ± SE1 value

Model 1

US-visceral depth (cm)
 3 months−0.024 ± 0.0270.4 −0.059 ± 0.0310.06
 12 months−0.041 ± 0.0240.09 0.062 ± 0.0280.03
US-subcut abdo depth (cm)
 3 months0.005 ± 0.0050.3 0.015 ± 0.0050.004
 12 months0.002 ± 0.0040.6 0.007 ± 0.0050.1

Model 2

US-visceral depth (cm)
 3 months−0.041 ± 0.0310.2 0.073 ± 0.0330.03
 12 months−0.045 ± 0.0260.09 0.073 ± 0.0280.009
US-subcut abdo depth (cm)
 3 months0.012 ± 0.0050.010.005 ± 0.0050.3
 12 months0.011 ± 0.0040.010.002 ± 0.0050.7

Results are shown before (Model 1) and after (Model 2) adjustment for body size at the time of the ultrasound measurement.
Model 1: adjusted for sex.
Model 2: also adjusted for current weight or skinfolds, respectively.
1B: Regression coefficient (and respective standard error); this represents the SD change in each parameter per 1 SDS change in birth weight or skinfold thickness at birth.