Objective: to review the evidence for a relationship between haemoglobin levels and cognitive decline/dementia in the elderly via a systematic review; and to evaluate the strength of the findings taking into account the methodological differences in constituent studies.
Part of the difference in values may be due to methodological differences in the surveys.
But in their analysis they argued that, if, in addition to taking into account the geographic location of the study, one takes into account the methodological differences among the investigators – the different diagnostic criteria that the studies used, who reported on the symptoms, and how much impairment was required for diagnosis – the worldwide prevalence of ADHD/HD is 5.3%.
Consequently, until a method to quantitatively synthesize results has been developed, a sensible qualitative data-synthesis, which takes methodological differences between primary studies into account, is indicated.
Thus, these estimates took into account methodological differences between trials and were termed the 'estimated' RRs of achieving NEDA status.
However, by taking into account methodological differences, PPRs for LABA, ICS, and fixed combination of LABA/ICS found in our study showed a similar pattern and trend compared to national drug consumption data [ 36, 40].
Although other works have evaluated informal care in CVA taking into account level of dependency, methodological differences between the studies, including the use of different dependency scales, prevents the comparison of their respective results [ 15, 27, 28].
However, these observations must take into account the methodological differences between the studies limiting the interpretation of these comparisons.
Our findings are comparable to the findings of Gordon et al. [ 6] on construct stiffness for three plating methods in olecranon fractures, but should be interpreted with care, taking into account the methodological differences.
Without a detailed investigation into such disciplinary and methodological differences, instructors and supervisors would find it difficult to inform novice writers about the permissibility and necessity to incorporate comments of different categories in the Results section.
