Quintero stage I or II Quintero stage I or II p Quintero stage III or IV Quintero stage III or IV p
DUAPI <0.4 (n=135) DUAPI ≥0.4 (n=41) DUAPI <0.4 (n=76) DUAPI ≥0.4 (n=97)
Maternal age (years)
30.0 (18-45) 33.0 (18-46)
0.6
29.5 (18-47) 32 (17-50)
0.3
AMA
28.1 (38/135) 36.6 (15/41)
0.3
25.0 (16/76) 28.9 (28/97)
0.6
Maternal BMI (kg/m2)
27.2 (17.7-60.2) 24.7 (11.5-46.1)
0.09
26.6 (17.4-52.1) 25.7 (17.2-53.5)
0.6
Maternal obesity
11.9 (16/134) 7.3 (3/41)
0.5
20.0 (15/75) 11.3 (11/97)
0.1
GA at surgery (weeks)
20.7 (16.1-25.6) 19.5 (16-26.1)
0.08
20.4 (15.1-25.9) 20.4 (16-29)
0.9
Trocar size (mm)
3.4 (3.0-4.2) 3.4 (1.3-4.1)
0.5
3.4 (1.3-4.2) 3.4 (1.1-4.2)
0.2
sFGR
14.1 (19/135) 22.0 (9/41)
0.2
18.4 (14/76) 34.0 (33/97)
0.02
Laser-to-delivery interval (days)
77.4 (0-131.6) 78.4 (1-142.1)
0.5
75.6 (0.7-154.7) 64.1 (0-150.5)
0.5
GA at delivery (Weeks) 32.3 (18.4-38.3) 32.5 (19.6-40.1)
0.8
32.1 (17.7-40.1) 30.2 (16.4-41)
0.4
Cervical length (cm)
4 (1.4-5.4) 3.9 (0.9-6.2)
0.7
4 (0.6-6) 3.6 (0.5-6.2)
0.07
Cerclage
3.7 (5/135) 4.9 (2/41)
0.2
2.6 (2/76) 6.3 (6/96)
0.3
PPROM
25 (32/128) 13.9 (5/36)
0.2
20.3 (14/69) 27.5 (25/91)
0.2
Use of Solomon technique
89.6 (121/135) 90.2 (37/41)
0.9
90.8 (69/76) 89.7 (87/97)
0.8
Laparoscopic-assisted procedure
6.7 (9/135)
0
0.09
3.9 (3/76) 4.1 (4/97)
0.9