Evidence Explorer · AJOG 2024

Labor Progress Tracker
Multifactor Partogram

Enter cervical exams in real time. See your patient's dilation and station plotted against 5th–95th percentile reference bands from the Hamilton et al. 7-variable multifactor model — accounting for induction, epidural, contractions, effacement, and prior exam values.

Patient Setup
First Examination (t = 0)
Examination Log
No exams recorded yet
Partogram
Hamilton et al. 2024 · 7-variable multifactor model · n=8,022 nulliparous vaginal deliveries
5th–95th percentile
25th–75th percentile
Median (50th)
Your patient
0
Exams Recorded
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Current Dilation
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Dilation Percentile
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cm/hr (last interval)
Model basis: Hamilton et al. AJOG 2024. Multifactor 7-variable machine learning (Gaussian processes) model. MAE 0.826 cm vs. 2.122 cm for time-only models — a 61% reduction in prediction error. Reference bands shown are approximations from published figures; actual clinical deployment requires the validated PeriGen/PeriWatch algorithm. Not for autonomous clinical decision-making.