TABLE 2.

Weight Gain (%) and Relative Organ Weights (%) under Each Experiment Condition and Significance of Various Comparisons

	Treatment	Dietary Se level
		Low (0.02 ppm)	Adequate (0.2 ppm)	Supplemental (2 ppm)	2-Way ANOVA
Growth (%)	Corn oil	21.1 ± 1.2	21.1 ± 1.7	21.4 ± 1.7	n/a
	0.2 μmol/kg PCB 126	19.3 ± 1.4	16.1 ± 1.9	16.9 ± 2.0	*
	1 μmol/kg PCB 126	16.6 ± 2.1	15.7 ± 2.2	14.1 ± 1.2*	*
	5 μmol/kg PCB 126	−5.1 ± 2.5*	−4.2 ± 1.9*	−0.6 ± 1.1*	*
	2-Way ANOVA	—	n/a	—
Relative liver weight (%)	Corn oil	3.86 ± 0.07	4.11 ± 0.06	4.36 ± 0.10	n/a
	0.2 μmol/kg PCB 126	5.00 ± 0.19*	5.57 ± 0.17*	4.84 ± 0.17#	*
	1 μmol/kg PCB 126	6.02 ± 0.10*	6.27 ± 0.17*	6.15 ± 0.17*	*
	5 μmol/kg PCB 126	6.91 ± 0.43*	7.01 ± 0.31*	7.52 ± 0.14*	*
	2-Way ANOVA	—	n/a	—
Relative lung	Corn oil	0.459 ± 0.012	0.464 ± 0.009	0.493 ± 0.018	n/a
Weight (%)	0.2 μmol/kg PCB 126	0.526 ± 0.015	0.573 ± 0.023*	0.514 ± 0.022	*
	1 μmol/kg PCB 126	0.622 ± 0.031*	0.557 ± 0.024*	0.611 ± 0.038	*
	5 μmol/kg PCB 126	0.596 ± 0.026*	0.653 ± 0.027*	0.604 ± 0.040	*
	2-Way ANOVA	—	n/a	—
Relative	Corn oil	0.228 ± 0.012	0.197 ± 0.012	0.213 ± 0.006	n/a
Thymus	0.2 μmol/kg PCB 126	0.161 ± 0.003*	0.151 ± 0.009*	0.171 ± 0.012*	*
Weight (%)	1 μmol/kg PCB 126	0.101 ± 0.008*	0.089 ± 0.006*	0.084 ± 0.004*	*
	5 μmol/kg PCB 126	0.057 ± 0.004*	0.046 ± 0.002*	0.038 ± 0.004*	*
	2-Way ANOVA	#	n/a	—

Note. Results are expressed as mean ± SEM. Each group contained four to six animals. One-way ANOVA was used to examine statistically significant differences (p < 0.05) between each PCB 126 level and the corn oil treatment (indicated by “*” if significant) and between low or supplemental and the adequate dietary Se level (indicated by “#” if significant). Significance for each factor based on two-way ANOVA is indicated in the “2-way ANOVA” rows by “#” for Se level and the “2-way ANOVA” column by “*” for PCB 126 level. All p values have been adjusted for multiple testing using Dunnett’s test. n/a, not applicable.