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Table 3 Results of the multivariate linear regression analysis: factors contributing to the fetal birth-weight (adjusted R2 = .69)

From: Ultrasound evaluation of the fetal fat tissue, heart, liver and umbilical cord measurements in pregnancies complicated by gestational and type 1 diabetes mellitus: potential application in the fetal birth-weight estimation and prediction of the fetal macrosomia

  Estimate 95% CI p value
Gestational age (week) 45.0 − 5.1 to 95.1 .08
Maternal height (cm) 12.8 5.0–20.5 < .01
BPD (mm) 14.7 0.6–28.9 < .05
AC (cm) 84.2 57.7–110.8 < .001
FL (mm) 11.3 − 0.5 to 23.2 .06
AFM (mm)* 101.4 43.8–158.9 < .001
LL (mm) 14.8 3.6–25.9 < .05
T1DM 124.7 − 37.1 to 286.6 .13
  1. AC abdominal circumference, AFM abdominal fat mass, BPD biparietal diameter, FL femur length, LL liver length, T1DM type 1 diabetes mellitus, CI confidence interval
  2. *AFM showed strong interdependence with the sub-scapular fat mass (SSFM) measurement, therefore, for the linear regression analysis only AFM was selected. Linear model including SSFM revealed that it was also an independent predictor of the fetal birth-weight [63.0, 95% CI (1.4–124.7), p < .05; adjusted R2 = .66]