Comparison · NCT02020018-87e92ce8
Prospective Group vs Retrospective Arm: Wound Infection After Open Heart Surgery
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. Prospective Group vs Retrospective Arm: Wound Infection After Open Heart Surgery. Trial comparisons, record NCT02020018-87e92ce8. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02020018-87e92ce8
On this page
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 | 0.0147 | 0.00573 | 0.0372 | wilson | |
| Risk in group 2 | 0.0106 | 0.00666 | 0.017 | wilson | |
| Risk difference, group 1 minus group 2 | 0.00406 | -0.00692 | 0.0269 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.38 | 0.468 | 4.07 | log | |
| Odds ratio, group 1 over group 2 | 1.39 | 0.463 | 4.15 | log | |
| Number needed to treat, for one more participant with the outcome on Prospective Group than on Retrospective Arm | 246 | from the risk difference interval | the interval includes no difference |
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 | Prospective Group | Negative pressure wound therapy (Prevena Incision Management System) applied immediately postoperatively. | 4 | 272 | OG000 |
| Group 2 | Retrospective Arm | Conventional sterile dry wound dressing applied immediately postoperatively. | 17 | 1,597 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- PRIMARY
- Title
- Wound Infection After Open Heart Surgery
- Description
- The total number of participants with surgical site infections after cardiac surgery.
- Time frame
- 30 days post-surgery
- Population
Source ClinicalTrials.gov
Trial
- Title
- Negative Pressure Wound Therapy for Prevention of Poststernotomy Infection
- NCT number
- NCT02020018
- Phases
- NA
- Conditions
- Surgical Wound Infection
- Interventions
- Prevena Incision Management System, Conventional sterile dry wound dressing
- Lead sponsor
- Mayo Clinic
- Results first posted
- 2019-11-06
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT02020018?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.
For software
Read this comparison from software.
The record is JSON. No key.
GET https://conductscience.org/api/comparisons/v1/NCT02020018-87e92ce8