表 3. The comparison of perinatal outcomes in groups with different TBA levels.

不同TBA水平的双胎ICP围产结局比较

Outcomes	Mild TBA group (n=329)	Severe TBA group (n=77)	P
TBA: Total serum bile acid; CS: Caesarean section; VD: Vaginal delivery ; MSAF: Meconium-stained amniotic fluid; NICU: neonatal intensive care unit.
Chorionic/case (%)			0.910
MCDA	160 (48.6)	38 (49.4)
DCDA	169 (51.4)	39 (50.6)
Hospital stay/d,	12.5±10.8	14.8±9.3	0.021
Delivery way/case (%)			0.646
CS	317 (96.3)	75 (97.4)
VD	12 (3.7)	2 (2.6)
Blood loss/mL	484.4±276.4	493.4±273.2	0.743
Neonatal body mass/g	2 154.3±430.1	2 059.3±436.4	0.489
Apgar score (5 min)/case (%)			0.811
≤7 score	11 (3.3)	3 (3.9)
>7 score	318 (96.7)	74 (96.1)
MSAF/case (%)	55 (16.7)	19 (24.7)	0.103
NICU/case (%)	135 (41.0)	38 (49.4)	0.184
Unexplained stillbirth/case (%)	1 (0.3)	3 (3.9)	0.004
Delivery/case (%)			0.001
≥37 weeks	46 (14.0)	5 (6.5)
≥34 weeks，<37 weeks	238 (72.3)	48 (62.3)
<34 weeks	45 (13.7)	24 (31.2)