In a GBA scenario, it would suggest restricting comparability of scores to those players who received an identical "test form".
Such differences restrict the comparability of the respective samples, while a number of studies emphasize that neither age nor schooling can be neglected.
Finally, even if we restrict the comparability of the two studies to simply drawing a sample of doctors from the same geographical area with predominantly slum population and a very high prevalence of TB, the findings are still worrisome and demand attention of all those concerned with TB control in the city and the country.
Furthermore, progress in medical diagnostics and improved access to health care restrict the comparability.
While this approach is valuable in describing the available evidence from a wide perspective, it restricts the comparability across studies.
The different methods used to select patient groups may lead to different populations (with limited generalisability) and different data-collection procedures, and therefore may restrict the comparability.
Other reasons may as well restrict the comparability of the included studies: - The different economic evaluations are based on different health care settings and legislations, e.g. the Canadian Medicare system, the National Health Service (NHS) in the United Kingdom or the German Statutory Health Insurance setting.
did play main role in these previous studies, and the population in 2011 study was restricted to have comparability of H. pylori seroprevalence.
For comparability, we restricted our sample to NTDB data from level-I public trauma centers (≥400 beds) in the U.S. Multiple logistic regression analyses were performed to evaluate the effect of setting (KAMC vs. NTDB) on in-hospital mortality after adjusting for age, sex, Triage-Revised Scale (T-RTS), Injury Severity Score (ISS), mechanism of injury, hypotension, surgery and head injuries.
To enhance comparability, we restricted our analysis to women aged 15 to 49. Determining the total annual number of condoms used in a population requires information on the frequency of intercourse.
