Newer DA-BLS Training Program vs Current BLS Training Program: deaths from any cause
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
Measures 6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note | Source |
|---|---|---|---|---|---|---|
| Risk in group 1 | 0.943 | 0.93 | 0.954 | wilson | ClinicalTrials.gov | |
| Risk in group 2 | 0.936 | 0.931 | 0.941 | wilson | ClinicalTrials.gov | |
| Risk difference, group 1 minus group 2 | 0.00657 | -0.00734 | 0.0185 | newcombe hybrid score | ClinicalTrials.gov | |
| Risk ratio, group 1 over group 2 | 1.01 | 0.993 | 1.02 | log | ClinicalTrials.gov | |
| Odds ratio, group 1 over group 2 | 1.12 | 0.887 | 1.42 | log | ClinicalTrials.gov | |
| Number needed to harm, for one more death from any cause on Newer DA-BLS Training Program than on Current BLS Training Program | 152 | from the risk difference interval | the interval includes no difference | ClinicalTrials.gov |
Groups 2
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 | Source |
|---|---|---|---|---|---|---|
| Group 1 | Newer DA-BLS Training Program | A 30-minute video-based self-instruction (VSI) training session, a short role-play, and a debriefing. The video consists of a bystander CPR simulation with dispatcher instructions using the trainee's own phone and practice session following demonstration by a simulated layperson. After watching the video clip, all trainees are divided into two groups and conduct a role-play as dispatchers and laypersons for 15 minutes. Finally, there is a 15-minute debriefing session with several assignments. The HEROS program focuses on cooperation with a dispatcher, from recognition of cardiac arrest to performing DA-CPR, with hands-on practice so that laypersons can provide bystander CPR immediately in a real situation. Moreover, the HEROS program emphasizes practice for providing the correct address of the scene and switching to speakerphone mode, especially for the elderly. | 1,401 | 1,486 | EG000 | ClinicalTrials.gov |
| Group 2 | Current BLS Training Program | A one-hour training program that was developed by the Korea CDC and it was based on the AHA BLS provider course (http://www.cdc.go.kr/board.es?mid=a20503050000\&bid=0021\&tag=\&act=view\&list\_no=127655). The program consists of a 30-minute VSI, and a 30-minute practice debriefing session. It focuses on detailed techniques for performing high-quality chest compressions including the correct hands and body position of the bystanders. | 8,090 | 8,641 | EG001 | ClinicalTrials.gov |
Harm 2
| Field | Value | Source |
|---|---|---|
| What it counts | Total, all-cause mortality | ClinicalTrials.gov |
| Time frame | from date of discharge, assessed up to 3 months | ClinicalTrials.gov |
Trial 8
| Field | Value | Source |
|---|---|---|
| Title | Effects of a New Dispatcher-Assisted Basic Life Support Training Program | ClinicalTrials.gov |
| NCT number | NCT02142387 | ClinicalTrials.gov |
| Phases | NA | ClinicalTrials.gov |
| Conditions | Out of Hospital Cardiac Arrest | ClinicalTrials.gov |
| Interventions | BLS CPR program with dispatcher assisted CPR simulation | ClinicalTrials.gov |
| Lead sponsor | Seoul National University Hospital | ClinicalTrials.gov |
| Results first posted | 2020-05-01 | ClinicalTrials.gov |
| Results on ClinicalTrials.gov | https://clinicaltrials.gov/study/NCT02142387?tab=results | ClinicalTrials.gov |
Source 4
| Field | Value | Source |
|---|---|---|
| Release | trial-comparisons-2026-03-23-0.1.0 | ClinicalTrials.gov |
| Release manifest SHA-256 | f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57 | ClinicalTrials.gov |
| AACT copy | 2026-03-23 | ClinicalTrials.gov |
| 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 | ClinicalTrials.gov |
Release trial-comparisons-2026-03-23-0.1.0
ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.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.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.
ClinicalTrials.gov: none 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.