Table 5.

Relationship between gym user knowledge and awareness of negative health consequences and use of performance enhancing agents.

Knowledge about risks of using PEAs	Subjects using the following agent over the last six months		t test statistic	P value
	Yes mean (SD)	No mean (SD)
Total score of knowledge about negative health consequences of using testosterone	35.97 (10.31)	36.52 (8.32)	0.36	.72
Total score of knowledge about negative health consequences of using diuretics	18.83 (5.65)	18.58 (4.53)	− 0.24	.81
Total score of knowledge about negative health consequences of using human growth hormone	21.57 (5.77)	20.51 (5.47)	− 0.85	.39
Total score of knowledge about negative health consequences of using insulin	12.58 (2.63)	11.15 (2.44)	− 2.45	.015
Total score of knowledge about negative health consequences of using protein powder supplements	12.04 (4.62)	13.37 (4.55)	2.38	.018
Total score of knowledge about negative health consequences of using energy drinks	15.08 (4.20)	15.71 (2.22)	1.48	.14

Degrees of freedom for each test=314