Supplement use in sport: is there a potentially dangerous incongruence between rationale and practice?

Table 2 Contingency table of creatine use and strength*

		Reason: increase strength and power output
		Yes	No
Supplement: creatine	Yes	X	Y	ΣXY
	No	Z	W	ΣZW
		ΣXZ	ΣYW

* ΣXZ = all athletes who use supplements to increase strength, ΣYW = all athletes who does not indicate increased strength as reason for supplement use, ΣXY = all athletes who take creatine and ΣZW = all athletes who do not take creatine.

ISSN: 1745-6673