From: Systematic review and meta-analysis of the etiology of heavy menstrual bleeding in 2,770 adolescent females
Uterine Disorders
n
MLE
LCredL
UCredL
Anovulatory Bleeding
525
98.7
97.6
99.5
Endometriosis
3
0.564
0.117
1.35
PCOS
Uterine Polyps
1
0.188
0.00477
0.692