TABLE 2.

Body Weights

			Body weight (g)
Selenium (mg/kg diet)	Treatment	Mice per group	Beginning of exposure	End of study
0.15	Control	8	18.85 ± 1.53a,b	19.29 ± 1.67
	Smoke	7	18.79 ± 1.01a,b	16.54 ± 1.48*
0.5	Control	8	19.54 ± 1.07b	20.00 ± 1.14
	Smoke	8	19.95 ± 1.03b	17.14 ± 1.04*
2.0	Control	8	18.90 ± 1.37a	19.50 ± 1.33
	Smoke	8	17.98 ± 1.14a	16.24 ± 0.82*
Results of two-way ANOVA (p values)
Main effect for selenium			0.01	0.24
Main effect for smoking			0.59	< 0.001
Selenium × Smoking interaction			0.29	0.84

Note. Results are means ± SEM. Significant differences in smoke-exposed mice for the same selenium level are indicated with an asterisk (*); for differences due to dietary selenium, values with different superscript letters are significantly different (p < 0.05).