Table 1.
Demographics and obstetric data comparison of study subjects who attended the 12‐month visit and women who dropped out. Ultrasound outcomes comparison of study subjects attending the 12‐month visit and women who dropped out after the 6‐week check‐up
| Parameter | Follow up | P | |
|---|---|---|---|
| 12‐month visit (n = 324) | Drop out (n = 216) | ||
| Demographic and obstetrics details | |||
| Maternal age (y) | 31.7 ± 3.8 | 31.1 ± 4.2 | 0.139b |
| BMI (kg/m2) | 22.9 (20.2‐24.8) | 23.1 (20.5‐27.8) | 0.925c |
| Gestational age at delivery (gestational weeks) | 40.2 (39‐41) | 40.2 (39‐41) | 0.928c |
| Previous surgery on the uterus | 43 (13.3) | 23 (15.0) | 0.612d |
| Assisted reproduction: IVF/ICSI | 21 (6.5) | 9 (5.9) | 0.489d |
| Gestational diabetes | 12 (3.7) | 7 (4.6) | 0.409d |
| Hypertensive disorders | 11 (3.4) | 4 (2.8) | 0.443d |
| Type of cesarean section | |||
| Acute in pregnancy | 15 (4.6) | 2 (0.9) | 0.062d |
| Acute during labor | 132 (40.7) | 92 (42.6) | |
| Planned in pregnancy | 39 (12.0) | 29 (13.4) | |
| Planned during labor | 138 (42.6) | 93 (43.1) | |
| Hysterotomy closure | |||
| Single‐layer | 149 (46.0) | 100 (46.3) | 0.167d |
| Double‐layer | 175 (54.0) | 116 (53.7) | |
| Cervical dilation | |||
| No dilation | 91 (28.1) | 54 (25.0) | 0.360d |
| Partial dilation | 166 (51.2) | 125 (57.9) | |
| Full dilation | 67 (20.7) | 37 (17.1) | |
| 6‐week control (n = 153)a | |||
| Uterine position | |||
| Anteflexion | 176 (54.3) | 88 (56.1) | 0.570d |
| Retroflexion | 148 (45.7) | 65 (42.5) | |
| CS scar description | |||
| Intact scar | 62 (19.1) | 38 (24.8) | 0.199d |
| Presence of scar defect | 262 (80.9) | 115 (75.2) | |
| Scar measurements and localization | |||
| Total myometrial thickness (mm) | 11.5 (9.7‐13.0) | 10.5 (9.2‐12.1) | 0.115c |
| Residual myometrial thickness (mm) | 5.8 ± 2.2 | 5.6 ± 1.9 | 0.340b |
| Width of the defect (mm) | 4.3 (2.9‐5.9) | 4.2 (2.8‐5.8) | 0.180c |
| Scar‐external cervical os distance (mm) | 31.0 (27.0‐35.0) | 33.0 (28.0‐35.4) | 0.211c |
Abbreviations: CS, cesarean section; IVF/ICSI, in vitro fertilization/intracytoplasmatic sperm injection.
a
The 63 women who did not attend the 6‐week check‐up were not included. Characteristics are presented as mean ± SD for normally distributed variables, median and interquartile range for non‐normally distributed variables. Categorical variables were presented as total number (percentage in group).
b
Student′s t test.
c
Wilcoxon‐Mann‐Whitney test.
d
Pearson Chi‐square test.