Comparison · NCT01639443-d71b04ec
Fast-tracked vs Control: Daily Service Denials (Bumps)
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. Fast-tracked vs Control: Daily Service Denials (Bumps). Trial comparisons, record NCT01639443-d71b04ec. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01639443-d71b04ec
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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 | 0.00000000000000000347 | 0.0335 | wilson | |
| Risk in group 2 | 0.0186 | 0.013 | 0.0266 | wilson | |
| Risk difference, group 1 minus group 2 | -0.0186 | -0.0266 | 0.0153 | 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 treat, for one fewer participant with the outcome on Fast-tracked than on Control | 53.8 | from the risk difference interval | the interval includes no difference |
Source ClinicalTrials.gov
Groups2
Group 2 names the comparator: control.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Fast-tracked | Patients who volunteer to enroll in fast-track line, which gives them an opportunity to overbook their appointment for endoscopy earlier in a predictive no-show slots.~Predictive no-show overbooking: During intervention period, every Veteran scheduled for an upper endoscopy will be offered fast-track offer, which gives them a chance to get their endoscopy procedure done earlier than usual scheduling by overbooking their appointment in a predictive no-show slot. | 0 | 111 | OG000 |
| Group 2 | Control | Patients who are scheduled routinely | 29 | 1,561 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Daily Service Denials (Bumps)
- Description
- The investigators will compare the number of patients bumped per day between scheduling approaches
- Time frame
- After 12 months of running study in clinic
- Population
These 1672 patients are a subset of all patients who were enrolled in this study. We dropped data on a first wave of participants (69 Fast-tracked and 3294 Controls) because of problems incorporating recruitment strategy into clinic. However, data from these individuals was used to build predictive model.
Source ClinicalTrials.gov
Trial
- Title
- Reducing VA No-Shows: Evaluation of Predictive Overbooking Applied to Colonoscopy
- NCT number
- NCT01639443
- Phases
- NA
- Conditions
- Colon Cancer
- Interventions
- Predictive no-show overbooking
- Lead sponsor
- VA Office of Research and Development
- Results first posted
- 2016-10-31
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01639443?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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