As the ICDAS has demonstrated comparability with standard criteria (WHO) in an epidemiological survey of preschool children [ 14], we used the ICDAS cut-off point of 3 (0–2 sound, 3 6 carious) to calculate the number of decayed/missing/filled teeth (dmft).
*Based on Newcastle-Ottawa scale criteria for selection (4 criteria) and outcome (3 criteria); criteria assessing comparability were considered not relevant in frame of individual patient meta-analysis.
In particular, the comparability of this criterion will be verified for the two groups.
Based on the NOS, case control studies were judged based on three broad perspectives: selection of study groups (1 criterion), comparability of study groups (4 criteria), and ascertainment of outcome of interest (3 criteria).
The aims of this study were to investigate the effect of varying the criteria used to determine cognitive impairment (CI) on prevalence and case definition and to examine comparability of different criteria.
Disagreement occurred mainly because of reading errors and differences in interpretation of the comparability of group criteria.
For quasi-RCTs and CBA studies, we used two additional criteria: Comparability of baseline characteristics: we classified studies as 'low risk' if there were no substantial differences between groups with respect to water quality, diarrhoeal morbidity, age, socioeconomic status, access to water, hygiene practices, and sanitation facilities.
The current CT-based International Workshop Criteria (IWC) still have the main advantage of representing standardized criteria allowing comparability of clinical trials in patients with lymphoma.
Use of a questionnaire that has been employed and validated in surveys in different countries, and of a diagnostic algorithm based on ICHD-2 criteria, ensures comparability between studies.
A wide variation in inclusion and exclusion criteria impairs comparability between studies and representativeness.
Individual experiences need to be reworked to fit such criteria as comparability and objectivity.
