Table 2.

Linear regression analyses showing the effects of maternal metabolic and anthropometric characteristics on newborn’s BW.

Maternal variable	b 0	b 1	β 1	R	p value
Age (years)	3149.46	2.99	0.03	0.033	0.6752
BMI before pregnancy (kg/m2)	2757.91	19.67	0.19	0.185	0.0204*
Weight before pregnancy (kg)	2544.41	10.91	0.27	0.273	0.0006*
Weight at delivery (kg)	2597.34	8.41	0.23	0.228	0.0036*
Weight gain during pregnancy (kg)	3257.01	−2.69	−0.03	−0.035	0.6663
Height (cm)	1080.95	13.19	0.20	0.200	0.0118*
Glucose (mg/dL)	3110.71	1.62	0.10	0.097	0.2777
Insulin (mIU/L)	3334.23	−5.34	−0.19	−0.187	0.0300*
HOMA2-IR	3339.37	−148.84	−0.19	−0.191	0.0334*
HOMA2-S (%)	3216.07	0.09	0.10	0.100	0.2679
QUICKI	2902.48	1011.47	0.12	0.124	0.1679
Parity	0.82	0.0003	0.116	0.116	0.1390
Gestational age (week)	36.58	0.0007	0.246	0.246	0.0015*

HOMA2-S: homeostatic model assessment for insulin sensitivity; HOMA2-IR: homeostatic model assessment for insulin resistance; QUICKI: quantitative insulin sensitivity check index; BMI: body mass index; BW: birth weight; ${\beta }_1$: standardized regression coefficient.

Formula: E(BW) = $b_0+b_1$ [variable].

p values were calculated using the F test for the null hypothesis that the slope (b₀) was 0 (i.e. H₀: b₁ = 0).

^*Significance was set at alpha = 0.05.