Plasma Levels of Polychlorinated Biphenyls, Non-Hodgkin Lymphoma, and Causation
Table 4
List of contributing strata and OR metrics satisfying the meta-analysis criteria. Results of the Chi-square test for homogeneity ( values and degrees of freedom, DOF) are shown for each meta-analyzed congener. Note that congener 118 is statistically heterogeneous (). However, removal of the weighted outlier [46] indicated homogeneity in the remaining strata. A combined test of all congeners indicated overall homogeneity ( and 37 DOF).