Table 3.

Percentage of random allocations that yield significant results on simulated data (i.e. power)

Risk ratio	t test		Odds ratio test
	Constrained	Random	Constrained	Random
1	0.13	5	1	7
0.6	48	49	61	57
0.5	81	75	89	82
0.4	97	93	99	96
0.3	100	99	100	100