They include sample size, environmental factors, differences in ethnicity, different study designs, and different definitions of treatment resistance.
So we considered that the different results were probably due to the differences in ethnicity and geographical conditions.
The species and the offgassing rates of pollutants from human metabolism are different among the Chinese, Americans and the Russians due to differences in ethnicity and dietary customs.
This difference may result from differences in ethnicity and marital status between the subjects in the different studies, or the relatively small number of cases in this study.
Differences in ethnicity, glycemic and/or ponderal status and use of medications in different studies could explain these heterogeneous results.
Portlanders, heavily represented in the jury pool, are not uniformly liberal, but the city's political culture often seems to be, with its concerns about social justice and cultural acceptance of differences in ethnicity, gender and sexual orientation.
Besides the differences in ethnicity, the study group assessed by Robbins et al. had more prior pregnancies and live births.
The disease affects young men and women aged between 25 and 40 years, without major differences in ethnicity.
Accordingly, intermarried immigrants seem to compensate for differences in ethnicity with greater similarity in education (see Chiswick and Houseworth 2008).
Rural conflicts have tended to focus on access to natural resource while urban conflicts have tended to be triggered by differences in ethnicity, religion, indigeneity and partisan politics.
The wide range of RLS prevalence values reported in previous studies may be explained by differences in ethnicity, cultural background, survey methods, and assessment tools.
