Effects of caesarean section on maternal health in low risk nulliparous women: a prospective matched cohort study in Shanghai, China

Table 3 Incidence of complications of women during hospitalization post-partum by mode of delivery

Factors	Caesarean section N (%)	Vaginal delivery N (%)	RR	95%CI	aRR*	95%CI
Total complications^†	29 (9.4)	15 (5.0)	1.9	1.1-3.5	2.2	1.1-4.4
Haemorrhage^#	12 (4.0)	2 (0.6)	6.0	1.4-26.6	5.6	1.2-26.9
Infection^$	7 (2.3)	3 (1.0)	2.3	0.6-9.0	2.3	0.5-9.8
Puerperal fever	13 (4.3)	10 (3.3)	1.3	0.6-2.9	1.8	0.7-4.5

* Adjusted for propensity score and medical indications.
^† Some patients had more than one. When fever and infection co-existed in a woman, it was counted only once in the total morbidity statistics.
^# Post-partum haemorrhage was defined as the total loss of blood more than 400 ml from the start of the labour until 2 hours post-partum [22].
^$ Including endometritis, wound infection, urinary infection.

ISSN: 1471-2393