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Table 4

Summary of regression analyses with BMI Z score and sum of skinfolds as dependent variables showing regression coefficients (95% CI) from simple regression analysis and multiple regression after backward elimination of nonsignificant variables

Independent variablesBMI Z score at age 2 years
Sum of skin folds at age 2 years§
Simple regression (95% CI)Multiple regression (95% CI)#Simple regression (95% CI)Multiple regression (95% CI)††
n 1,082 990 
AUC for maternal glucose (mg/dl · hr) 0.001 (−0.001 to 0.003) −0.001 (−0.002 to 0.001) 0.0001 (0.0000 to 0.0003) 0.0001 (−0.0001 to 0.0003) 
Age at examination (years) 0.85 (0.25 to 1.44)** 0.79 (0.22 to 1.37)** −0.012 (−0.069 to 0.046) 0.001 (−0.056 to 0.058) 
Male sex 0.06 (−0.07 to 0.18) 0.07 (−0.05 to 0.19) −0.022 (−0.034 to −0.010)*** −0.019 (−0.031 to −0.007)** 
Birth weight Z score 0.29 (0.22 to 0.35)*** 0.26 (0.19 to 0.32)*** 0.013 (0.006 to 0.019)*** — 
Sum of skin folds at birth 1.64 (0.95 to 2.33)*** — 0.140 (0.073 to 0.207)*** 0.120 (0.051 to 0.188)*** 
Maternal BMI (kg/m2) at 24–30 weeks of gestation 0.038 (0.024 to 0.052)*** 0.027 (0.012 to 0.040)** 0.002 (0.000 to 0.003)** — 
Independent variablesBMI Z score at age 2 years
Sum of skin folds at age 2 years§
Simple regression (95% CI)Multiple regression (95% CI)#Simple regression (95% CI)Multiple regression (95% CI)††
n 1,082 990 
AUC for maternal glucose (mg/dl · hr) 0.001 (−0.001 to 0.003) −0.001 (−0.002 to 0.001) 0.0001 (0.0000 to 0.0003) 0.0001 (−0.0001 to 0.0003) 
Age at examination (years) 0.85 (0.25 to 1.44)** 0.79 (0.22 to 1.37)** −0.012 (−0.069 to 0.046) 0.001 (−0.056 to 0.058) 
Male sex 0.06 (−0.07 to 0.18) 0.07 (−0.05 to 0.19) −0.022 (−0.034 to −0.010)*** −0.019 (−0.031 to −0.007)** 
Birth weight Z score 0.29 (0.22 to 0.35)*** 0.26 (0.19 to 0.32)*** 0.013 (0.006 to 0.019)*** — 
Sum of skin folds at birth 1.64 (0.95 to 2.33)*** — 0.140 (0.073 to 0.207)*** 0.120 (0.051 to 0.188)*** 
Maternal BMI (kg/m2) at 24–30 weeks of gestation 0.038 (0.024 to 0.052)*** 0.027 (0.012 to 0.040)** 0.002 (0.000 to 0.003)** — 

†AUC, area under the curve for maternal pregnancy OGTT.

‡Sum of triceps, subscapular and suprailiac (flank) skin folds (log10-transformed).

§Sum of triceps, subscapular, and suprailiac skin folds (log10-transformed).

#Maternal glucose, age, and sex all forced into model (R2 = 0.078).

††Maternal glucose, age, and sex all forced into model (R2 = 0.027).

**P < 0.01;

***P < 0.001.

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