Check list | |
Selection | |
1. Is the case definition adequate? (one star for independent validation) | |
2. Representativeness of the cases (one star for obviously representative series of cases) | |
3. List inclusion and exclusion criteria for exposed and unexposed subjects. (one star for clear description) | |
4. Describe any assessments undertaken for quality assurance purposes. (one star for comparability or test-retest of primary outcome measurements) | |
Comparability | |
5. Explain any patient exclusions from analysis. (one star for yes) | |
6. Describe how confounding was assessed and/or controlled. (one star for yes) | |
Outcome assessment | |
7. Determination of results. (one star for secure records) | |
8. Summarize patient response rates and completeness of data collection. (one star for yes) | |
9. Adequacy of follow up. (one star if follow-up≥80% or effective response rate ≥ 80%) |