表 3. Neonatal outcomes.

新生儿结局

Neonatal outcomes	Group△	Dose of NE/ (μg/[kg·min])#					P
		0.025	0.05	0.075	0.10	0.125
NICU: Neonatal intensive care unit.△1: Singleton pregnancy; 2: Twin pregnancy. * P<0.05, vs. group 1 at the same dose level. # n=20 for singleton pregnancy, n=40 for twin pregnancy.
(Male/female)/case	1	10/10	13/7	10/10	8/12	13/7	0.44
	2	20/20	19/21	21/19	18/22	21/19	0.95
Body mass/g	1	3444.0±355.7	3408.0±360.9	3325.5±378.2	3340.0±350.0	3400.0±437.5	0.85
	2	2546.0±310.4*	2511.8±303.0*	2493.3±286.9*	2522.8±247.1*	2405.5±354.5*	0.64
Height/cm	1	50.4±1.2	49.9±1.6	49.3±2.0	50.0±1.1	49.6±2.1	0.30
	2	46.3±1.7*	46.4±1.8*	46.5±1.8*	47.2±1.7*	46.3±2.3*	0.57
NICU admission/case (%)	1	0 (0)	0 (0)	2 (10)	0 (0)	0 (0)	0.20
	2	8 (20)	2 (5)	10 (25)	4 (10)	10 (25)	0.05
Apgar <7 at 1 min/case (%)	1	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	−
	2	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	−
Apgar <7 at 5 min/case (%)	1	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	−
	2	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	−
Umbilical artery pH	1	7.289±0.028	7.278±0.049	7.292±0.042	7.302±0.029	7.302±0.029	0.31
	2	7.291±0.023	7.297±0.020	7.290±0.020	7.279±0.035*	7.291±0.029	0.31
Umbilical artery PCO2/mmHg	1	53.8±5.9	56.1±7.4	55.6±6.6	52.4±5.6	55.4±7.0	0.40
	2	50.7±4.6	52.1±2.4*	53.1±5.8	53.9±7.2	51.3±7.0	0.41
Umbilical artery PO2/mmHg	1	15.6±3.9	15.0±6.3	15.0±4.0	14.4±5.0	14.7±5.1	0.95
	2	13.8±3.8	14.7±2.8	12.4±4.7	14.2±2.6	14.4±4.6	0.40
Base excess/mmol L−1	1	−0.8±2.1	0.3±1.6	0.2±1.6	−0.7±1.4	−0.4±1.6	0.17
	2	−2.3±2.1*	−0.9±1.3*	−1.2±2.2*	−1.6±1.9	−1.5±1.8	0.24