Table 2 Comparison of the incidences of perineal tears according to the RCOG classification7 between the two IUFD and control groups.

From: Influence of in utero fetal death on perineal tears in vaginal deliveries

Perineal tear

Incidence in the “IUFD” group

Incidence in le the “control” group

Relative risk [95% IC]

n = 215

n = 430

First degree

10%

11%

0.88 [0.5–1.4]

Second degree

18%

28%

0.51 [0.2–1.4]

OASIS

0%

0%

/

Any perineal tear

13% (28)

16%(69)

0.8 [0.5–1.2]

  1. Results are presented as percentage (number of cases).
  2. OASIS, obstetrical anal sphincter injury.