Comparison · NCT02909673-867838b4
Intervention Group vs Control Group: Number of Participants Reporting Alcohol/Marijuana Use
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Intervention Group vs Control Group: Number of Participants Reporting Alcohol/Marijuana Use. Trial comparisons, record NCT02909673-867838b4. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02909673-867838b4
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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 | 0.123 | 0.104 | 0.145 | wilson | |
| Risk in group 2 | 0.165 | 0.146 | 0.187 | wilson | |
| Risk difference, group 1 minus group 2 | -0.042 | -0.0709 | -0.0125 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 0.746 | 0.606 | 0.919 | log | |
| Odds ratio, group 1 over group 2 | 0.711 | 0.558 | 0.905 | log | |
| Number needed to treat, for one fewer participant with the outcome on Intervention Group than on Control Group | 23.8 | 14.1 | 80.3 | from the risk difference interval |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: control.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Intervention Group | The students who participated in the Fourth R. The Fourth R, is a classroom-based curriculum delivered by existing teachers and consists of 21 lessons on injury prevention, substance use, and growth and development. | 122 | 988 | OG000 |
| Group 2 | Control Group | The students who received the standard health class curriculum. | 204 | 1,233 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Number of Participants Reporting Alcohol/Marijuana Use
- Description
- Provides the number of participants reporting alcohol/marijuana use.
- Time frame
- 1 year
- Population
Source ClinicalTrials.gov
Trial
- Title
- School Based Program to Prevent Teen Dating Violence
- NCT number
- NCT02909673
- Phases
- NA
- Conditions
- Violence
- Interventions
- Fourth R
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Results first posted
- 2025-12-22
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT02909673?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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