Perinatal outcomes of twin emergency cerclage: comparison with expectant treatment and singleton emergency cerclage

Figures & data

Table 1. Three groups of pregnant women on admission.

Characteristic	Group A (n = 26)	Comparative Group
		Group B (n = 77)	P	Group C (n = 17)	P
Vaginal bleeding (n, %)	12 (46.2)	31 (40.3)	0.598	10 (58.8)	0.416
Cervical dilation (cm)	2.5 (1.5, 3.0)	3.0 (2.0, 3.0)	0.514	2.0 (0.0, 4.0)	0.696
WBC (*10)	9.24 (7.87, 10.36)	10.03 (8.52, 11.74)	0.140	11.33 (10.22, 12.60)	0.071
CRP	5.00 (4.40, 12.87)	6.15 (5.00, 9.70)	0.684	5.00 (3.00, 7.8)	0.309
Abnormal leukorrhoea (n, %)	9 (34.6)	27 (35.1)	0.967	6 (35.2)	0.730
Gestational age at cervical dilatation (weeks)	23.0 (22.0, 24.0)	22.0 (21.0, 24.0)	0.108	24.0 (21.0, 26.5)	0.707

Group A: twin emergency cerclage, Group B: singleton emergency cerclage, Group C: twin expectation treatment.

Table 2. Pregnancy outcomes of twin and singleton emergency cerclage and twin expectation treatment.

Characteristic	Group A (n = 52)	Comparative Group
		Group B (n = 77)	P	Group C (n = 34)	P
1 min neonatal asphyxia rate (n, %)	24 (46.2)	24 (31.2)	0.084	26 (76.5)	<0.001
5 min neonatal asphyxia rate (n, %)	12 (23.1)	20 (26.0)	0.709	22 (64.7)	<0.001
Birth weight (g)	1330.0 (1040.0, 1680.0)	2800.0 (1590.0, 3305.0)	<0.001	1450.0(1277.5, 1572.5)	0.438
Gestational age of birth (week)	28.5 (27.0, 31.0)	34.0 (27.0, 38.0)	0.018	24.0 (21.0, 30.0)	0.013
NICU (n, %)	36 (80.0)	28 (42.4)	<0.001	14 (100.0)	0.164
interval to delivery (day)	37.0 (18.0, 60.0)	78.0 (28.0, 108.0)	0.007	7.0 (3.0, 14.0)	<0.001
neonatal survival rate (n, %)	39 (75.0)	59 (77.6)	0.730	12 (35.3)	<0.001

Group A: twin emergency cerclage, Group B: singleton emergency cerclage, Group C: twin expectation treatment.

Figure 1. Survival curves of the three groups.

Table 3. The proportion of deliveries in different gestational weeks of twin and singleton emergency cerclage.

gestational weeks	Group A (n = 26)	Group B (n = 77)	OR (95% CI)	P
<26W	5 (26.3)	14 (73.7)	1.000 (1.000, 1.000)	Ref.
[26W, 30W)	10 (41.7)	14 (58.3)	2.000 (0.543, 7.370)	0.298
[30W, 34W)	6 (40.0)	9 (60.0)	1.867 (0.437, 7.978)	0.400
[34W, 37W)	4 (25.0)	12 (75.0)	0.933 (0.203, 4.285)	0.929
≥37W	1 (3.4)	28 (96.6)	0.100 (0.011, 0.940)	0.044
Test for trend				0.011

Data availability statement

The primary data used to support the results of this study are available on reasonable request to the corresponding author.