Table 3.

Results of multiple linear regression analysis of main fetal growth parameters among live born singletons.

	Q1		Q2	Q3		Q4
	β (95% CI)	P value		β (95% CI)	P value	β (95% CI)	P value
Mid-term ultrasound measurements
Biparietal diameter	0.00(-0.01,0.01)	0.364	Reference	-0.01(-0.02,-0.00)	0.004	-0.03(-0.04,-0.02)	<0.001
Humerus length	0.00(-0.00,0.01)	0.803	Reference	-0.02(-0.02,-0.01)	<0.001	-0.03(-0.03,-0.02)	<0.001
Femur length	0.00(-0.00,0.01)	0.335	Reference	-0.02(-0.02,-0.01)	<0.001	-0.03(-0.04,-0.02)	<0.001
Head circumference	-0.00(-0.03,0.02)	0.813	Reference	-0.02(-0.05,0.01)	0.140	-0.08(-0.11,-0.05)	<0.001
Abdominal circumference	0.03(-0.00,0.06)	0.079	Reference	-0.05(-0.08,-0.02)	0.001	-0.14(-0.17,-0.11)	<0.001
Estimated fetal weight	1.41(-0.37,3.20)	0.119	Reference	-4.18(-5.97,-2.39)	<0.001	-9.36(-11.23,-7.49)	<0.001
Neonatal outcomes
Gestational age	0.01(-0.03,0.05)	0.592	Reference	-0.00(-0.04,0.03)	0.909	-0.03(-0.07,0.00)	0.082
Body length	0.04(0.01,0.08)	0.024	Reference	-0.01(-0.05,0.03)	0.630	-0.06(-0.10,-0.02)	0.006
Birthweight	9.12(-2.72,20.96)	0.131	Reference	-17.32(-29.23,-5.41)	0.004	-36.89(-49.32,-24.45)	<0.001
Birthweight z-score	0.03(0.00,-0.06)	0.023	Reference	-0.04(-0.06,-0.01)	0.004	-0.09(-0.11,-0.06)	<0.001

Analyses were adjusted for age, BMI, gravidity, parity, educational level, alcohol and cigarette consumption before pregnancy, ALT, AST, gestational age at sampling, pregnancy induced hypertension and gestational diabetes mellitus.