Table 5.

Comparison of outcome measures in the study cohort with the overall number of women giving birth during the same six-month period

	Total (N=1338) n (%)	In this study cohort (N=445) n (%)
Spontaneous vaginal birth	832 (62)	296 (66)
Nulliparous	586 (44)	218 (49)
Multiparous	752 (56)	227 (51)
Instrumental	157 (12)	67 (15)
Emergency caesarean section	205 (15)	82 (18)
OASI	24 (1.7)	13 (2.9)
Shoulder dystocia	15 (1.1)	5 (1.1)
PPH ≥1500 mL	57 (4.3)	23 (5.1)
Epidural	232 (17)	116 (26)

OASI: obstetric anal sphincter injury. PPH: postpartum hemorrhage.