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.