In a regulator's view, these concerns have to be translated into the formulation of criteria on data requirements for future guidance notes.
Most of this summary data comes from individual country DHSs, which use a standardised methodology and sampling framework and have strict criteria on data quality, thereby allowing comparison between countries and over time.
In qualitative research, the sample size is based on the criterion of data saturation [ 24], i.e. data collection can be stopped when the last three units of analysis do not yield new information.
Figure 2 Level curves of the muzzle blast localization criterion based on data from a field trial.
We applied this criterion on our data to get an idea about the effect of broadening the crisis concept on the number of identified crises.
An example presented in Table 1 looks nice, and should be regarded as some justification; however the novel method's disagreement with most other methods (in Table 2) raises the suspicion that the performance of the new method, once scrutinized by some performance criterion on real data, may be bad.
Indeed, Ferraz and colleagues published the only peer-reviewed study that validated SLE classification criteria for cSLE, reporting 96% sensitivity and 100% specificity of the 1982 American Rheumatism Association classification criteria, based on data from 103 children with cSLE and 101 children with other rheumatic diseases from Brazil [ 3].
Studies were chosen if they fulfilled the inclusion criteria, reporting on: data completeness; experiences of users and integration of care between women and health care providers.
Predictive criteria, based on data readily available upon a patient's admission to ICU, were developed and effectively predicted the risk of developing IAH.
The selection of the case to be described has been based on the criteria of data completeness.
