The Evidence Room: The Mirage of the “Latent Labor” Curve
Why definitions matter more than data when re-drawing obstetrics.
The new AJOG study by Edwards et al. claims that higher maternal BMI is associated with longer labor, driven primarily by extended “latent labor.”
Yet the paper never defines what “latent labor” actually is. That omission is not trivial. It undermines the study’s interpretability and renders its main conclusion, namely that BMI-specific labor curves mig…
