Comparison · NCT04581863-sae
COVID Watch vs COVID Watch + Pulse Oximeter: serious adverse events
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
Cite this record
ConductScience Library. COVID Watch vs COVID Watch + Pulse Oximeter: serious adverse events. Trial comparisons, record NCT04581863-sae. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT04581863-sae
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0 | 0 | 0.00374 | wilson | |
| Risk in group 2 | 0 | 0 | 0.00373 | wilson | |
| Risk difference, group 1 minus group 2 | 0 | -0.00373 | 0.00374 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | log | a group has no participants with the outcome | |||
| Odds ratio, group 1 over group 2 | log | a cell of the two-by-two table is zero | |||
| Number needed to harm | from the risk difference interval | the two groups' risks are equal |
Source ClinicalTrials.gov
Groups2
Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | COVID Watch | COVID Watch provides text-based assessments, two times a day for 14 days and escalates care to a nurse via telemedicine for any reported worsening of symptoms not severe enough to recommend going to the ED immediately. This service is provided free of charge to patients, a benefit to patients without insurance or established primary care. UPHS already offers a version of COVID Watch with pulse oximetry to patients with COVID-19 being discharged from the ED who meet specific criteria: a discharge pulse ox less than 95%, an infiltrate on chest x-ray, are or age of 60 years or older, or who are deemed by the ED clinician to have significant comorbid conditions.~COVID Watch: Enrolled patients receive text-based assessments, two times a day for 14 days and escalates care to a nurse via telemedicine for any reported worsening of symptoms not severe enough to recommend going to the ED immediately. | 0 | 1,024 | EG000 |
| Group 2 | COVID Watch + Pulse Oximeter | This arm is COVID Watch + pulse oximeter device. Patients sent a pulse oximeter will be prompted twice daily to text their oxygen saturation level after walking in place for 1 minute. If the oxygen saturation is \>3% lower than than the baseline first O2 sat measurement, or if it falls below an absolute level of 90%, the patient will receive an immediate call from the same on-call RN's for COVID Watch and undergo the same triage protocol .~pulse oximeter: Patients will be prompted twice daily to text their oxygen saturation level after walking in place for 1 minute. If the oxygen saturation is \>3% lower than than the baseline first O2 sat measurement, or if it falls below an absolute level of 90%, the patient will receive an immediate call from the same on-call RN's for COVID Watch and undergo the same triage protocol .~COVID Watch: Enrolled patients receive text-based assessments, two times a day for 14 days and escalates care to a nurse via telemedicine for any reported worsening of symptoms not severe enough to recommend going to the ED immediately. | 0 | 1,025 | EG001 |
Source ClinicalTrials.gov
Harm
- What it counts
- Total, serious adverse events
- Time frame
Source ClinicalTrials.gov
Trial
- Title
- COVID-19 Watch + COVID-19 Pulse
- NCT number
- NCT04581863
- Phases
- NA
- Conditions
- Covid19
- Interventions
- pulse oximeter, COVID Watch
- Lead sponsor
- University of Pennsylvania
- Results first posted
- 2023-11-24
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT04581863?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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