Association between epidural analgesia and indications for intrapartum caesarean delivery in group 1 of the 10-group classification system at a tertiary maternity hospital, Shanghai, China: a retrospective cohort study

Table 5 Factors associated with maternal request in Group 1

Factors	Univariate logistic regression		Multivariate logistic regression
Factors	OR (95% CI)	P-value	aOR (95% CI)	P-value
Maternal age (y)	1.03 (0.97–1.09)	0.339	1.03 (0.97–1.10)	0.352
Gestational age (w)	0.95 (0.79–1.13)	0.538	0.93 (0.76–1.13)	0.449
BMI (kg/m²)	1.12 (1.06–1.24)	0.134	1.08 (1.04–1.21)	0.267
AC (cm)	1.04 (1.01–1.08)	0.225	0.99 (0.94–1.04)	0.691
Use of EA	0.35 (0.25–0.47)	< 0.001*	0.30 (0.22–0.42)	< 0.001*
Intrapartum fever	1.09 (0.75–1.60)	0.637	1.17 (0.76–1.79)	0.471
Oxytocin	2.13 (1.40–3.23)	< 0.001*	2.34 (1.47–3.75)	< 0.001*
Amniotomy	1.45 (1.07–1.95)	0.016*	1.13 (0.79–1.62)	0.504

Abbreviations: BMI body mass index, AC abdominal circumference, EA epidural analgesia, OR Odds ratio, aOR adjusted odds ratio, CI confidence interval
Intrapartum fever: body temperature ≥ 38.0 °C in labour
* P value < 0.05

ISSN: 1471-2393