Table 1 POP-Q classification of POP in subjects (total number = 279).

From: The relationship between obstructed defecation and true rectocele in patients with pelvic organ prolapse

POP-Q staging

anterior compartment

central compartment

Posterior compartment

I

20 (7.2%)

40 (14.3%)

30 (10.7%)

II

71 (25.4%)

63 (22.6%)

126 (45.1%)

III

150 (53.8%)

137 (49.1%)

103 (36.9%)

IV

38 (13.6%)

39 (14.0%)

20 (7.2%)

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