Skip to main content

Table 1 Criteria used for rating studies

From: Body mass index and dental caries in children and adolescents: a systematic review of literature published 2004 to 2011

  Sample Attempt made to control confounds? BMI measure Dental caries measure
1 Stratification/cluster sampling use to obtain sample representative of countries/districts Yes Standardized Dental surgery
Mirror and probe
Optimal lighting and dry field
Radiographs
Dentally qualified examiner calibration
2 Some form of cluster sampling use to obtain sample approximately representative of towns No Non-standardized Dental surgery
Mirror and probe
Optimal lighting and dry field
Dentally qualified examiner calibration
3 Convenience sample with some randomization    Field clinic
Mirror and probe calibration
4 Convenience sample without randomization    Field clinic
Visual inspection calibration
5     Parent report
  1. BMI, body mass index.