OR	Odds Ratio
C-Section	Cesarean birth
CC	Cephalic circumference
EFW	Estimated fetal weight
UI	Urinary incontinence
FI	Fecal incontinence
AI	Anal incontinence
POP	Pelvic organ prolapse
CI	Confidence interval
SD	standard deviation
BMI	Body mass index
LAM	Levator ani muscle
PFD	Pelvic floor diseases
HGUGM	Hospital General Universitario Gregorio Marañón de Madrid