Digital Biomarker Depression Score

Passive smartphone & wearable sensing fused into a continuous depression-severity biomarker, calibrated against PHQ-9

Current Stage

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Predicted PHQ-9

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Correlation (r)

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Active Modalities

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Clinician Alert

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Modality Dropout10%

PersonalizationHybrid

Accelerometer / actigraphy

GPS mobility trace

Screen / app-usage pulses

Typing / keystroke dynamics

Wearable sleep signal

Predicted score vs PHQ-9 (dotted)