|
< 24 mon
(n = 121)
|
24-59 mon
(n = 583)
|
60-119 mon
(n = 712)
|
≥120 mon
(n = 246)
|
|
Maternal age at index conception (y) |
30.75±3.5 |
31.43±3.31 |
33.88±3.2 |
37.14±2.95 |
< 0.001 |
≥ 35 |
16 (13.2) |
86 (14.8) |
284 (39.9) |
195 (79.3) |
0.001 |
< 35 |
105 (86.8) |
497 (85.2) |
428 (60.1) |
51 (20.7) |
|
Education (y) |
|
|
|
|
< 0.001 |
≤ 12 |
9 (7.4) |
36 (6.2) |
52 (7.4) |
23 (9.4) |
|
13-16 |
10 (8.3) |
48 (8.3) |
74 (10.5) |
34 (13.9) |
|
≥ 17 |
102 (84.3) |
497 (85.5) |
578 (82.1) |
188 (76.7) |
|
BMI, No. (Kg/m2) |
|
|
|
|
0.005 |
< 18 |
19 (15.7) |
74 (12.7) |
55 (7.7) |
14 (5.7) |
|
18-23.9 |
80 (66.1) |
395 (67.8) |
525 (73.7) |
173 (70.3) |
|
24-27.9 |
22 (14.9) |
93 (16) |
116 (16.3) |
51 (20.7) |
|
> 28 |
4 (3.3) |
21 (3.6) |
16 (2.2) |
8 (3.3) |
|
Number of previous pregnancies |
|
|
|
|
<
0.001 |
≥ 3 |
66 (54.5) |
366 (62.8) |
530 (74.4) |
218 (88.6) |
|
< 3 |
55 (45.5) |
217 (37.2) |
182 (25.6) |
28 (11.4) |
|
Parity ≥ 2 |
16 (13.2) |
38 (6.5) |
26 (3.7) |
10 (4.1) |
<
0.001 |
Prior cesareans ≥ 2 |
16 (13.2) |
33 (5.7) |
21 (2.9) |
5 (2.0) |
0.001 |
Prior vaginal birth |
4 (3.3) |
8 (1.4) |
11 (1.5) |
6 (2.4) |
0.384 |
IVF-ET |
2 (3.5) |
6 (1.0) |
4 (0.6) |
3 (1.2) |
0.007 |
Preexisting hypertension |
2 (1.7) |
2 (0.3) |
4 (0.6) |
4 (1.6) |
0.128 |
Preexisting diabetes |
0 (0) |
3 (0.5) |
2 (0.3) |
2 (0.8) |
0.60 |
Gestational age at delivery (weeks) |
38.05±1.75 |
38.07± 1.81 |
38.12±
1.76 |
37.72± 2.21 |
0.027 |
Mode of delivery |
|
|
|
|
0.178 |
Repeated cesarean section |
117 (96.7) |
560 (96.1) |
696 (97.8) |
242
(98.4) |
|
Vaginal birth after CS |
4 (3.3) |
23 (3.9) |
16 (2.2) |
4 (1.6) |
|
Type of repeated cesarean section |
|
|
|
|
|
Emergency cesarean section |
38 (32.2) |
179 (31.9) |
220 (31.6) |
87
(36.0) |
0.641 |
CS with indications |
45 (37.2) |
191 (34) |
216 (31) |
85 (35.1) |
0.403 |