Audit, Improvement & Integrated Appraisal
Bring the subject together: ask a useful question, judge an estimate and improve care through a measured cycle.
Quick revision ↓ Medical Dictionary
01Audit and improvement questions
Clinical audit compares actual care with an explicit standard, identifies gaps, implements change and measures again. Quality improvement uses systematic local changes to improve processes and outcomes. Research seeks new knowledge through an appropriate design. These activities can overlap; classification and review requirements depend on the project and institution. Do not assume a label such as audit automatically removes governance, privacy or consent responsibilities.
02Choose balanced measures
An outcome measure captures what happens to patients, a process measure captures what care is delivered and a balancing measure checks unintended consequences. For a programme reducing clinic waits, waiting time is important but rushed consultations or missed follow-up may worsen. Define numerator, denominator, data source and measurement frequency. Measure the system consistently before and after change and consider whether case mix or staffing also changed.
03Test changes and learn
A plan-do-study-act cycle specifies a change and prediction, tries it on a suitable scale, examines what happened and adapts the next step. Small tests support learning but do not automatically establish causation. Run charts preserve time order and can reveal patterns that a single before-and-after average hides. Use appropriate rules and contextual knowledge when interpreting variation rather than reacting to every random fluctuation.
04Integrated article appraisal
Begin with the question and design. Check participant selection, comparison fairness, outcome definitions, missingness and analysis. Identify the effect measure, absolute size, interval and harms. Compare the reported outcomes with the plan, then consider relevance to the patient and care setting. A disciplined summary should say what the study suggests, why it is or is not credible, and which uncertainty still matters for the decision.
05Final worked appraisal
A clinic reports fewer missed appointments after introducing reminders, but there is no concurrent control and staffing changed at the same time. The improvement is promising, yet the reminder effect cannot be isolated confidently. Check denominators, comparable periods and unintended privacy issues, then plan further evaluation. This combines the subject's central habits: define the question, inspect the comparison, quantify the result, respect participants and communicate uncertainty honestly.
High-Yield Revision
- Audit closes the loop by measuring again after change.
- Include balancing measures to detect unintended harm.
- Finish appraisal with an actionable statement of effect, credibility and relevance.
Common Pitfalls
- Do not attribute every before-and-after improvement to the intervention.
- Do not start collecting identifiable information without the appropriate governance route.
References & Further Reading
Use the full methods and relevant chapters when appraising a paper. These sources support further study; the examples and questions above are original teaching exercises.
- Oxford CEBM — Critical appraisal tools
- Cochrane Handbook — Methods for evidence synthesis
- CDC — Analysing and interpreting epidemiological data
- ASA — Statement on p-values and statistical significance
- Oxford CEBM — Likelihood ratios
- Cochrane — GRADE and summary of findings
- WMA — Declaration of Helsinki, 2024 revision
- EQUATOR — Reporting guideline library
- NIH OBSSR — Mixed-methods research resources
- Institute for Healthcare Improvement — Model for Improvement