The results of this study further support the multivariate role of obesity in OA pathomechanics and surgical outcome, where the detrimental loading on the joint is dependent on the interaction between the static mass of the patient and the dynamic mechanical environment.
To investigate which factors play important roles in the uptake of these radiotracers, we used both univariate and multivariate analysis.
Both of these two variables have significant roles in predicting early relapse of our studied patients either with univariate or multivariate analysis.
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A researcher may know the common landmark shared by several measurements; however, this knowledge has no role in multivariate analyses.
In the present study, fever and shivering were found in 55.3 % of patients, and multivariate analysis confirmed their significant role in the diagnosis of LDIE.
Only Ki67, however, maintained an independent prognostic role in the multivariate analysis, confirming the importance of assessing this marker in these tumors [ 27, 28].
Interestingly, our univariate analysis found that HT is a risk factor for PTC, whereas HT played a protective role in the multivariate analysis, which is consistent with previous reports.
We do not believe that the fibrin glue could have had a significant role because the amount injected was always proportional to the length of the needle track through aerated lung tissue and there was thus covariance with a factor that played no role in the multivariate models.
We summarize supervised methods that include prior knowledge to guide the analysis in Table 3 Additional file 2. This section provides a separate discussion of the covariance matrix because it plays a central role in many multivariate data analysis methods, as discussed in the previous sections.
