Age, parity, and prolapse: interaction and influence on levator bowl volume.
International Urogynecology Journal
INTRODUCTION AND HYPOTHESIS: The objective was to test the hypotheses that a linear relationship exists between age and levator bowl volume (LBV); and that age, parity, and prolapse are independently associated with LBV.
METHODS: We conducted a secondary analysis of data from nulliparous women, parous controls, and prolapse (Pelvic Organ Prolapse Quantification (POP-Q) Ba ≥ 1 cm) cases from each of three age groups: young (≤40), mid-age (50-60), and older (≥70). LBV was measured using MRI at rest and Valsalva as the 3D space contained above the levator ani muscles and below the sacrococcygeal junction-to-inferior pubic point reference plane. Linear regression models were used to examine the effects of age, parity, prolapse, and their interactions (age*parity and age*prolapse) on LBV.
RESULTS: Each group consisted of 9-12 women. LBV
CONCLUSIONS: Parity and prolapse influence how age affects LBV
Cheng W, Chen L, Thibault MD, DeLancey JO, Swenson CW. Age, parity, and prolapse: interaction and influence on levator bowl volume. Int Urogynecol J. 2022 Dec;33(12):3415-3422. doi: 10.1007/s00192-022-05203-8. PMID: 35503121.