Open Access
Table I
Summary of study characteristics and assessment of risk of bias of studies.
| Study characteristics | Studies n (%) | Assessment of bias | Studies n (%) |
|---|---|---|---|
| Year of publication | Selection | Adequate | |
| <2005 | 3 (10%) | Definition of cases | 26 (90%) |
| 2005–2010 | 11 (38%) | Selection of cases | 26 (90%) |
| 2011–2014 | 4 (13%) | Definition of controls | 25 (86%) |
| ≥2015 | 11 (38%) | Selection of controls | 25 (86%) |
| Study design | Comparabiliy | ||
| Control cases | 25 (86%) | In age and sex | 23 (79%) |
| Cross sectional study | 4 (14%) | Other factors | 13 (44%) |
| Types of cases | Measures | ||
| BMS | 29 (100%) | Description of measures | 29 (100%) |
| Types of healthy subjects | Validation of the technique | 29 (100%) | |
| Healthy | 29 (100%) |
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