Respiratory Rate as a Predictor of Clinical Deterioration and Mortality: A Scoping Review
Authors' conclusion
RR was commonly identified as a predictor of mortality and clinical deterioration, with continuous monitoring showing higher detection rates of respiratory abnormalities compared with intermittent monitoring.
Study context
- Population
- Hospitalised adults aged ≥ 16 years21 studies
- Outcome
- Mortality
Methodological detailsstructured search of MEDLINE Ovid, EMBASE Ovid and PubMed, PICO framework, two independent reviewers, Most studies observational: 6 retrospective, 10 prospective, 1 case-control, 2 comparative cohort
- Structured search of MEDLINE Ovid, EMBASE Ovid and PubMed
- PICO framework
- Two independent reviewers
- Most studies observational: 6 retrospective, 10 prospective, 1 case-control, 2 comparative cohort
Main finding
As reported in the abstract
RR as predictor of mortality and clinical deterioration
- RR frequently associated with mortality and clinical deterioration; findings varied with clinical context and measurement method
- Sample sizes 34 to 556,848 patients
Further findings
Continuous vs intermittent RR monitoring
- Continuous monitoring detected more cases of sustained respiratory abnormalities than intermittent measurements; clinical impact requires further investigation
Original publication
Respiratory Rate as a Predictor of Clinical Deterioration and Mortality: A Scoping Review. Acta Anaesthesiol Scand. Published 19 August 2025. doi:10.
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