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Table 2 Criteria list for assessment of the methodological quality of prospective cohort studies [2022]

From: Is retirement good for your health? A systematic review of longitudinal studies

Criteriaa I, V/Pb % studies meeting the item
Study population and participation (baseline)
1. Adequate description of sampling frame, recruitment methods, period of recruitment, and place of recruitmentc I 64%
2. Participation rate at baseline at least 80%, or if the nonresponse was not selective V/P 23%
3. Adequate description of baseline study sample for key characteristicsc I 32%
Study attrition
4. Provision of the exact n at each follow up measurement I 68%
5. Provision of exact information on follow-up duration I 95%
6. Response at short-term follow-up was at least 80% of the n at baseline and response at long-term follow-up was at least 70% of the n at baseline V/P 50%
7. Information on not selective nonresponse during follow-up measurementd V/P 18%
Data collection
8. Adequate measurement of retirement status V/P 23%
9. Retirement status was assessed at a time prior to the measurement of the health outcome V/P 86%
10. Adequate measurement of the health outcome V/P 64%
Data analyses
11. The statistical model used was appropriate and point estimates with measures of variability (CI or SE) have been provided V/P 59%
12. The number of cases was at least 10 times the number of the independent variables V/P 100%
13. Important confounders were identified and there has been adjusted for V/P 36%
14. No selective reporting of results V/P 91%
  1. aRating of criteria: + = yes; - = no; ? = unclear.
  2. bI, criterion on informativeness; V/P, criterion on validity/precision.
  3. cAdequate = sufficient information to be able to repeat the study; + is given only if adequate information is given on all characteristics.
  4. d+ is given only if nonselective dropout on key characteristics (age, gender, retirement status, health outcomes) is reported in the text or tables.