SDL does not have this substantive feature.
Several substantive and methodological characteristics of the studies showed a statistical relationship with the lifetime prevalence rates, so a multiple regression model can offer a predictive model of the expected prevalence under certain conditions.
The impact of the different survey characteristics carries substantive implications when food consumption data are employed for assessing food security conditions.
We determined whether or not we met this objective by testing the hypothesis that there are statistically significant and substantive differences in key characteristics across DPBRN regions, based on responses to the DPBRN Enrollment Questionnaire from dentists who participated in DPBRN's first network-wide study.
We can conclude that our objective was indeed met because we were able to document statistically significant and substantive differences in key characteristics within and between DPBRN regions, based on responses to the DPBRN Enrollment Questionnaire from dentists who participated in DPBRN's first network-wide study.
Broadly, the Argentinian sample tended to have more unfavorable demographic characteristics, while the North American sample presented with in several substantive ways more unfavorable illness characteristics (in spite having more favorable demographic characteristics).
Thus, though the Argentinian compared to North American patients had more unfavorable demographics, they presented a better social outcome and, in several substantive ways, more favorable illness characteristics.
Quality was scrutinised by checking adequacy of randomisation, group comparability at baseline (examining baseline characteristics for any substantive differences), blinding (where appropriate), use of intention to treat analysis, completeness of follow-up, compliance, reliability by using a priori estimation of sample size, and generalisability by using a description of the sample recruited.
Importantly, there were no substantive differences in measured baseline characteristics between the group that participated in public commitment activities and the group that did not, suggesting that these results were not an artifact of differences in measured variables at study onset.
The study characteristics were classified into substantive (subject and context variables), methodological, and extrinsic variables [ 30].
