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Within-patient variability of AI-ECG sex prediction

There is 1 paper on within-patient variability of AI-ECG sex prediction in aging research: 1 observational study in people. The newest story, Nov 9, 2026: “AI heart-test predictions varied within hospitalized patients”.

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“After full adjustment, within-patient variability of predicted age and sex was independently associated with 5-year mortality across all three cohorts”
Reproducibility of AI-ECG Predictions: Within-Patient Reliability of AI-ECG Across Nine Prediction Tasks and Three Multi-Centre CohortsAHA Scientific Sessions 2026 abstract2026doi:10.1161/circ.154.suppl_1.9994
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5-year all-cause mortality

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  1. Within-patient variability of AI-ECG sex prediction is associated with 5-year all-cause mortality in humans (Q4 versus Q1 HR: BIDMC 0.55 (95% CI 0.49–0.61); MGH 0.58 (0.56–0.59); EUH 0.61 (0.55–0.68)).

    “After full adjustment, within-patient variability of predicted age and sex was independently associated with 5-year mortality across all three cohorts”

    HumansHighest versus lowest quartile of within-patient prediction variability; adjusted for age, sex, comorbidity burden and cluster mean prediction5 years

    AI heart-test predictions varied within hospitalized patients

    AHA Scientific Sessions 2026 abstract

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AHA Scientific Sessions 2026 Abstract

AI heart-test predictions varied within hospitalized patients

Disagreement rates across repeated heart recordings ranged from 14.3% to 24.5% for disease prediction tasks.Disagreement rates across repeated heart recordings ranged from 14.3% to 24.5% for disease prediction tasks.

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