Useful biomarkers for assessing the adverse health effects of PCBs in allergic children: pediatric molecular epidemiology

Table 2 Concentration-dependent associations between the concentrations of individual and total PCB and the mRNA expression level of IL-8 among all subjects, the non-asthmatic (control) subjects and the asthmatic subjects [18]

In each correlation study, PCB levels were first stratified by tertile and then assessed using univariate regression analysis
Coefficient: regression coefficient
SE standard error
* P for trend was obtained using a univariate regression model

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