Correlation between ductus venosus spectrum and right ventricular diastolic function in isolated single-umbilical-artery foetus and normal foetus in third trimester

Table 2 Comparison of basic characteristics and clinical data between the two groups, mean ± SD

	Isolated SUA group	Control group	P value
Maternal weight, kg	61.9 ± 5.8	61.8 ± 5.5	0.978
Body mass index, kg/m2	24.1 ± 3.6	24.6 ± 3.7	0.853
Maternal age in yr	27.7 ± 5.2	27.5 ± 4.5	0.382
Delivery at wk	37.9 ± 1.1	38.8 ± 0.9	0.139
Birth weight, kg	2.9 ± 0.3	3.3 ± 0.4	0.011
Placental weight, kg	461 ± 59	523 ± 62	< 0.001

SUA: Single umbilical artery.