Severity of illness has been proposed as another factor affecting the association between exposure to PRBC and the development of NEC.
Multivariable Cox proportional hazards models were constructed to control for possible confounding factors affecting the association between patient location and outcomes separately for diabetic and nondiabetic patients.
Full-mouth plotted curves for adjusted mean RABL in the maxilla were similar between the chewer and control groups, suggesting that chemical effects were not the main factors affecting the association between betel quid chewing and the periodontal status.
Factors affecting the association between treatment delay and mortality with ≥10% were corrected for and the same cut-off was used in the supplementary logistic regression model on treatment delay and severity.
Also, if OSA is an intermediate factor in the development of hypertension, diabetes, dyslipidemia or other conditions, controlling for these variables represents a case of "over adjustment," potentially affecting the association between dependent and independent variables [ 39, 40].
Notably, subjects' smoking status did not affect the associations between serum inflammatory markers and quantitative emphysema.
However, collection of samples by this method would not affect the associations between mediators that were observed.
First, previous research found that ethnicity affects the associations between TG/HDL-C and insulin resistance.
Adjustment did not affect the associations between cancer networks of residence or deprivation and ethnicity being recorded.
It would not affect the associations between BMD feedback and behavior change, nor the associations between behavior change and BMD change.
