Perineal structural changes on 3-dimensional endovaginal ultrasound 6 months after difficult vaginal birth: the Hourglass-Band pattern and how it relates to levator ani avulsion and hiatus size.

Am J Obstet Gynecol · 2026 · PMC13078598 · PMID 41223961

Europe PMC DOI

hedged sentence

0.1200

closest p · 2.4× alpha

0.1200

boldest claim

The sentences

did not reach statistical significanceP =.12not close (p > 0.1)

The hourglass appearance was 1.4 times more likely to be absent in the LA defect group, although it did not reach statistical significance ( P =.12).

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