A Retrospective Study of the Association of Repeated Attempts at Trial of Labor After Cesarean Birth on Maternal and Neonatal Outcomes

Figures & data

Table 1 Demographic and Clinical Characteristics According to the Number of the Trial of Labor After Cesarean Section

Demographic and Clinical Characteristics		TOLAC, Number (Percentage)				P-value
		Group 1 (n=669)	Group 2 (n=237)	Group 3 (n=132)	Group 4 (n=101)
Age (Mean ± SD)		29.4±5.4	30.6±5.5	32.6±4.9	35.4±4.8	<0.0001^†
Nationality	Saudi	585 (87.4)	193 (81.4)	93 (70.4)	23 (22.7)	<0.0001*
	Non-Saudi	84 (12.5)	44 (18.6)	39 (29.6)	78 (77.2)
Booking Status	Booked	519 (78.0)	175 (74.2)	99 (75.6)	78 (78.0)	0.6155*
	Non-booked	146 (21.9)	61 (25.9)	32 (24.4)	22 (22.0)
Gravidity (Mean ± SD)		3.2±1.9	4.1±1.7	5.1±1.4	7.0±1.8	<0.0001^†
Parity (Mean ± SD)		1.8±1.5	2.6±1.2	3.4±0.9	5.1±1.4	<0.0001^†
BMI (Mean ± SD)		30.8±6.5	30.4±5.9	30.9±5.7	31.5±6.1	0.7497^†
Hemoglobin before (Mean ± SD)		11.1±1.3	11.3±1.3	11.3±1.3	10.9±1.3	0.6097^†

Notes: Data are mean ± standard deviation or n (%). *P-values from Mantel-Haenszel test for trend or Cochran-Armitage Trend Test. ^†p-value from Jonckheere-Terpstra Test.

Table 2 Pregnancy Outcomes According to the Number of Trials of Labor After Cesarean Section

Pregnancy Outcomes	TOLAC, Number (Percentage)				P-value
	Group 1 (n=669)	Group 2 (n=237)	Group 3 (n=132)	Group 4 (n=101)
VBAC Success	488 (72.9)	221 (93.2)	124 (93.9)	95 (94.0)	<0.0001*
Uterine Rupture	1 (0.1)	0	0	1 (0.9)	0.2541*
Dehiscence	4 (0.6)	0	0	0	0.1513*
Transfusion	16 (2.3)	1 (0.4)	1 (0.7)	1 (0.9)	0.0819*
Pyrexia	10 (1.4)	1 (0.4)	2 (1.5)	0	0.2372*
No of hospital stays (Mean ± SD)	2.4±1.7	1.9±2.1	1.8±1.3	2.0±2.0	<0.0001^†
Birth weight (kg), (Mean ± SD)	3.1±0.5	3.0±0.5	3.2±0.5	3.3±0.5	0.0035^†
1-minute Apgar <5	20 (2.9)	1 (0.1)	2 (1.5)	1 (0.9)	0.0759*
5-minute Apgar <5	1 (0.1)	237 (100.0)	0	0	0.4737*
Neonatal resuscitation	4 (0.6)	1 (0.4)	0	1 (0.9)	0.9222*
ICU admission	10 (1.4)	0	1 (0.8)	1 (0.9)	0.3168*

Notes: Data are mean ± standard deviation or n (%). *P-values from Mantel-Haenszel test for trend or Cochran-Armitage Trend Test. ^†p-value from Jonckheere-Terpstra Test.