Surgery +/- radiotherapy + (adjuvant) chemotherapy vs Surgery +/- radiotherapy alone (observation or adjuvant radiotherapy only): Overall survival, adjuvant concomitant chemoradiotherapy vs post-surgery radiotherapy alone
- Population
- People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer
- Intervention
- Surgery +/- radiotherapy + (adjuvant) chemotherapy
- Comparison
- Surgery +/- radiotherapy alone (observation or adjuvant radiotherapy only)
- Outcome
- Overall survival, adjuvant concomitant chemoradiotherapy vs post-surgery radiotherapy alone
Surgery +/- radiotherapy + (adjuvant) chemotherapy probably leads to lower overall survival, adjuvant concurrent chemoradiation vs adjuvant… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty).
What each review found
Include earlier review versions| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
Surgery +/- radiotherapy + (adjuvant) chemotherapy vs Surgery +/- radiotherapy alone (observation or adjuvant radiotherapy only) Overall survival, adjuvant concurrent chemoradiation vs adjuvant radiotherapy · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer Surgery +/- radiotherapy + (adjuvant) chemotherapy probably leads to lower overall survival, adjuvant concurrent chemoradiation vs adjuvant… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty). Interventions for the treatment of oral cavity and oropharyngeal cancer: chemotherapy (2021) · Cochrane All outcomes | HR 0.84 [0.72, 0.98] | 4 studies · 1097 participants | Moderate |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Interventions for the treatment of oral cavity and oropharyngeal cancer: chemotherapy 2021 · Cochrane All outcomes | 2021-09 | Not listed | Not assessed |
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.