IM designed experiments, supervised the study, organized sampling, performed plausibility control of the data, supplied database applications for all the subsequent data analyses, partly performed data analyses, contributed to the interpretation of data, revised and edited the manuscript.
A plausibility control of the interview data is done quarterly and is the basis for the regular training courses of the interviewers.
Examples for these automated processes are lists of patient schedules for all participating centres sent at regular intervals, inventory of visit-reminders for patients, randomisation of patients, and basic data plausibility control.
During data entry, automatic plausibility controls will be conducted to assure quality of data entry.
As a control for plausibility the copy number of mRNA for the low-abundance housekeeping gene TBP (TATA-box binding protein) was also determined and was expected to be between 20 and 40 copies per normal resting cell (data not shown).
The control for tight band-width in cost modules and further plausibility checks can lead to the exclusion of cases from the calculation, even if costs are calculated correctly.
Furthermore, all data entries were controlled for plausibility by the authors, and verified by the participating centre prior to publication.
Therefore, data controls for plausibility were performed to identify and correct data input errors (e.g. for quantities, extremes in energy and nutrient intake) and about 3400 interviewer's comments were checked and integrated into the interview data.
Data are entered via special MS Access entry masks automatically controlling for data plausibility.
Data were entered via special MS Access entry masks automatically controlling for data plausibility.
