RESS1 Flashcards
Define Research Evidence
The systematic investigation into, and study of, materials and sources to establish facts and reach new conclusions
What results can a poorly designed study cause?
Uninterpretable and misinterpretable
Levels of the Hierarchy of evidence (top to bottom)
MetaAnalyses Systematic Reviews Critically Appraised Topics Critically Appraised Individual Articles Randomized Controlled Trials Cohort Studies Case-Controlled Studies Background Information/ Expert Opinion
Case-control study
Selects participants on the basis of their outcome and works back to their exposure- cheap but subject to bias
Cohort study
Longitudinal study following group of people over time, recording subsequent events- selects participants before the outcome but no control over exposure
RCT
Participants randomised to treatment groups (minimising bias) - participants selected before outcome and exposure controlled but expensive
Meta-analysis
Combines (using formal statistical procedures) the quantitative results from multiple studies- formal summary of existing evidence
3 types of study that support healthcare development and assessment
Research, Audit, Service Evaluation
Define Research
Generates new knowledge where there is no or limited research evidence available and which has the potential to be generalisable or transferable
Define Audit
A quality improvement process that seeks to improve patient care and outcomes through systematic review of care against explicit criteria and the implementation of change.
Define Clinical Audit
Measures existing practice against evidence-based clinical standards i.e. Is what ought to be happening, actually happening?
Clinical Audit Cycle
- Preparation and planning
- Measuring performance
- Implementing Change
- Sustaining improvement
Service Evaluation
Evaluates a current service or proposed practice (e.g. uptake, activity) with the intention of generating information to inform local decision-making
Establishes what factors might be associated with those contexts, those patients or those practitioners who succeed in achieving this standard; and those who do not
What kind of study is: What proportion of patients with dysphagia are given swallowing therapy at least 3 times a week?
Audit
What kind of study is: How many times a week are patients given swallowing therapy?
Service Evaluation