Comparison · NCT02156154-009c3a42
Intravenous Acetaminophen vs Intravenous 0.9% Sodium Chloride: Incidence of Postoperative Nausea and Vomiting
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. Intravenous Acetaminophen vs Intravenous 0.9% Sodium Chloride: Incidence of Postoperative Nausea and Vomiting. Trial comparisons, record NCT02156154-009c3a42. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT02156154-009c3a42
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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 | 0.5 | 0.442 | 0.558 | wilson | |
| Risk in group 2 | 0.443 | 0.386 | 0.501 | wilson | |
| Risk difference, group 1 minus group 2 | 0.0571 | -0.0254 | 0.139 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | 1.13 | 0.947 | 1.35 | log | |
| Odds ratio, group 1 over group 2 | 1.26 | 0.902 | 1.75 | log | |
| Number needed to treat, for one more participant with the outcome on Intravenous Acetaminophen than on Intravenous 0.9% Sodium Chloride | 17.5 | 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 | Intravenous Acetaminophen | Acetaminophen infusion will be initiated before the surgical incision with 1 g and repeated every 6 hours for the earlier of 48 postoperative hours of hospital discharge.~Intravenous Acetaminophen | 140 | 280 | OG000 |
| Group 2 | Intravenous 0.9% Sodium Chloride | 0.9% sodium chloride infusion will be initiated before the surgical incision with 100 ml and repeated every 6 hours for the earlier of 48 postoperative hours of hospital discharge.~Intravenous Acetaminophen | 124 | 280 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- SECONDARY
- Title
- Incidence of Postoperative Nausea and Vomiting
- Description
Patients were asked about postoperative nausea and vomiting in the postanesthesia care unit, at 4-hour intervals while awake through the remaining initial day of surgery, and on the first and second postoperative mornings.
- Time frame
- Initial 48 postoperative hours or duration of hospitalization (whichever comes first)
- Population
- Data on the outcome could not be collected for 3 patients in the IV acetaminophen group and 7 patients in the IV sodium chloride group.
Source ClinicalTrials.gov
Trial
- Title
- Effect of Intravenous Acetaminophen on Postoperative Opioid-related Complications
- NCT number
- NCT02156154
- Phases
- PHASE3
- Conditions
- Postoperative Pain
- Interventions
- Intravenous Acetaminophen
- Lead sponsor
- The Cleveland Clinic
- Results first posted
- 2021-04-20
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT02156154?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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