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As previously mentioned, sample size within each group and the retrospective approach are limitations of our study.
Based on an existing review on health economic studies in CAM, 8 of 143 studies mentioned sample size calculation parameters.
In addition, the mentioned sample size can find a significant difference of 30% between two experimental groups' changes in the global score of Lequesne and WOMAC.
Similar(57)
There is still certain timidity in qualitative studies, given that they mention sample size and the impossibility of generalising results as limiting factors.
Moreover, the International Society for Quality of Life research (ISOQOL) recently defined minimum standards required for the design and selection of a PRO measure but did not mention sample size determination [ 12].
The respondents were considered to have correctly answered the question regarding randomized controlled trial if the following concepts were mentioned: sample size/power; blinding; base line characteristics; measuring appropriate outcomes; description of randomization; population similar to my patients; intention to treat analysis.
Additional strengths of our study include the already mentioned large sample size and diversity of the populations.
They mentioned small sample size as one of the study limitations and stated that such a result – that is, variability in opinions – may not be generalized.
As previously mentioned, the sample size of most studies in this meta-analysis was small, and many studies had a short follow-up period.
Second, the authors mention the sample size of Malik et al as 107 gastric cancer cases and 195 controls (Malik et al, 2011).
While improving statistical methods to examine POE in neuropsychiatric conditions will advance our odds of uncovering such effects, it is worth mentioning that sample size is a critical factor as well.
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