Sorts | Subsorts | Quality criteria |
---|---|---|
A | The final sample should be representative of the target population | |
1 | At least 1 of the following should apply for the study (2 points) | |
– An entire target population | ||
– Randomly selected sample | ||
– Sample stated to represent the target population | ||
2 | At least one of the following (2 points) | |
– Reasons for nonresponders described | ||
– Nonresponders described | ||
– Comparison of responders and nonresponders | ||
– Comparison of sample and target population | ||
3 | Response rate > 90% (2 points) | |
Response rate 70% to 90% (1 point) | ||
Response rate ≤ 70% (0 points) | ||
B | Quality of data | |
4 | Were the data primary from a prevalence study (2 points) or was it taken from a survey not specifically designed for that purpose (1 point)? | |
5 | The same mode of data collection should be used for all subjects (2 points), if not: 1 point | |
6 | – The data have been collected directly from the patient by means of a validated questionnaire/interview (3 points) | |
– No validated questionnaire/interview patients (2 points) | ||
– Data have been collected from proxies or retrospectively from medical record (1 point). | ||
C | General description of the method and results should include: | |
7 | Description of target population and setting where patients were found (2 points) | |
8 | Description of stage of disease, sex, age (all 2 points, 1 or 2: 1 point) | |
9 | Final sample size (1 point) | |
D | Definition of FOG prevalence | |
10 | Prevalence recall periods should be stated (1 point) |