Sentence examples for by small study populations from inspiring English sources
However, these studies were limited by small study populations and did not present a clinical decision rule.
Moreover, they have been hampered by small study populations [ 5, 8, 9], lack of information on comorbidity and surgery [ 5, 8], lack of comparison cohorts of patients without liver disease undergoing same type of surgery [ 5, 8, 9], and restriction to in-hospital mortality [ 7, 9, 10].
While researchers have attempted to obtain consensus on the relationship between TNF antagonist therapy and these relatively rare events, analyses have generally been limited by comparatively small study populations and short periods of patient follow-up.
However, this discrepancy can most likely be explained by a potential selection bias due to small study populations, and the differences in modalities used for the assessment of CAD in these studies.
This is supported by our finding of a lower CRP level upon admission in metformin users compared with non-users, although interpretation of their study results was hampered by the small study population, the exclusion of six patients after randomization, and by a lack of data on clinical outcomes.
This is a nice example for a study that is limited by a small study population and a low prevalence of the disease to be studied [48].
The high prevalence in the present study might be explained by the small study population and inclusion of milder colic cases.
Furthermore, the present investigation is limited by a small study population and additional investigations in larger patient cohort and preferably in a multi-center setting are preferred.
The absence of statistical significance for the association between RRT and some traditional preoperative risk factors might be explained by our small study population, lack of power, or for unknown confounders.
