However, we could not assess the effects of OHCA location because the database did not include this information.
The specific indications for MV or use of NIV could not be determined because the database did not provide such information.
Because the database did not provide the diagnostic criteria for cholelithiasis, these patients are more appropriately designated as having symptomatic cholelithiasis, i.e., calculus of the gallbladder without mention of cholecystitis.
Some data may be unrecorded because the purpose of the database did not require it, such as details of pubertal maturation, specific psychiatric rating scales, measurements of brain function and activity (EEG, fMRI), or risk factors such as developmental history, parental history of medical and psychiatric problems and life events.
Fifty-day delays and angry queues were the result.Identity cards will be phased in gradually, as people renew their passports, and, because the database does not replace something that already exists, there will be no "big bang" when older systems are switched off.
Because the database does not contain identifiable information, the McGill University Faculty of Medicine Institutional Review Board did not require ethics review and approval.
The MIMIC II database has received ethical approval from the institutional review boards (IRBs) at BIDMC and MIT, and, because the database does not contain protected health information, a waiver of the requirement for informed consent was included in the IRB approval.
We chose 1970 as the starting point because the databases did not allow reliable tracking of people's residence before that year.
Because the databases did not provide data on the duration of diabetes, the duration of full reimbursement for diabetes was used as a proxy for disease duration (in the subgroup of patients entitled to full reimbursement for diabetes treatment).
Third, because this database did not contain actual dosing information for cetuximab, the study used the cetuximab payment amount as a proxy for change in dose.
(Because the MMIT database does not indicate the proportion of intravenous versus oral ciprofloxacin used, we used the oral DDD for ciprofloxacin of 1,000 mg for all ciprofloxacin use).
