Table 2

Spearman's correlation coefficients for age, BMI, parity, VD, CS, PAS and the position of vaginal points relative to PS3L.

Age

BMI

Parity

VD

CS

PAS

Pregnancy

r

p

r

p

r

p

r

p

r

p

r

p

r

p

b-PS3L

−.49

.000

−.30

.000

−.36

.000

−.40

.000

.14

.000

.01

.755

.10

.010

C-PS3L

−.20

.000

−.09

.030

−.11

.005

−.09

.029

−.03

.414

−.06

.158

.04

.278

D-PS3L

−.16

.000

−.08

.051

−.08

.051

−.11

.006

.06

.157

.01

.815

.07

.067

  • BMI, Body mass index; VD, Vaginal delivery; CS, Caesarean section;PAS, Previous abdominal surgery; PS3L, A reference line passing through the inferior aspect of the pubic symphysis to the third sacral vertebra; PCL, the pubococcygeal line.