Table A3.

Baseline Selenium Levels (n = 1,022)

Treatment	Selenium Level
	0 (below normal)		1 (normal, first quartile)		2 (normal, second quartile)		3 (normal, third quartile)		4 (normal, fourth quartile)		5 (above normal)
	No. of Patients	%	No. of Patients	%	No. of Patients	%	No. of Patients	%	No. of Patients	%	No. of Patients	%
Placebo (n = 330)	2	< 1	26	7.9	95	28.8	127	38.5	56	17.0	24	7.3
Selenium (n = 692)	7	1	43	6.2	192	27.7	310	44.8	102	14.7	38	5.5