Compare · passive vs active
Passive vs active monitoring.
Almost every monitoring approach is either active or passive. Active monitoring asks the patient to do something — answer a survey, record a voice sample, log a mood. Passive monitoring does not. That single distinction is what decides coverage.
What Active monitoring is
Active monitoring relies on patient input: questionnaires, mood logs, check-ins, or recordings. It can be rich and structured, but it only produces data when the patient participates, which is where it breaks down for the patients who need it most.
Where Active monitoring is genuinely good
- Active input can capture context and subjective experience a sensor cannot.
- Validated scales remain the documentation and billing standard.
- When patients are engaged, active tools work well.
Where it falls short
- Participation decays as symptoms worsen, so coverage is weakest for at-risk patients.
- Data is intermittent and depends on the patient's effort and recall.
- It adds burden, which itself contributes to drop-off.
Side by side
| Feature | Emobot | Active monitoring |
|---|---|---|
| Patient effort | None after setup (passive) | Required each time (active) |
| Coverage of at-risk patients | High | Lowest when symptomatic |
| Cadence | Continuous | When the patient acts |
| Objectivity | Sensor-derived | Self-reported |
| Best role | Between-visit signal | Periodic anchor |
Where Emobot is different
Coverage where it counts
Because nothing is asked of the patient, passive monitoring keeps working precisely when active methods fail: during deterioration.
Objective and continuous
A daily, sensor-derived score replaces sparse self-report between visits.
Use both
Keep active scales as periodic anchors and add passive monitoring for the continuous signal in between.
Frequently asked questions
What is the difference between passive and active monitoring?
Active monitoring requires the patient to do something (surveys, logs, recordings); passive monitoring collects data automatically from sensors with no patient action. Passive methods maintain coverage even when a patient is too unwell to engage.
Is passive monitoring better than active?
They serve different roles. Active scales are good periodic anchors and support billing; passive monitoring provides continuous, objective coverage between visits, including for patients who stop engaging. Most clinics use both.
Why does passive monitoring reach more patients?
Because it asks nothing of the patient after setup, it is not subject to the engagement decay that reduces active-method completion to 30 to 40% by email, and that decay is worst among deteriorating patients.
Related reading: Passive Depression Monitoring: Clinical Guide
See the difference on a real patient case.
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