Table 3.

Statistical Power for two-sample Student T-test based on mean MD of the BCC and GCC.

	d = 2.6%	d = 3.0%	d = 3.4%	d = 3.8%
n = 60	0.794	0.894	0.953	0.982
n = 65	0.825	0.916	0.966	0.988
n = 70	0.852	0.934	0.976	0.992
n = 75	0.875	0.949	0.983	0.995
n = 80	0.895	0.960	0.988	0.997
n = 85	0.912	0.969	0.991	0.998

n is the sample size of each group and d is the minimum effect size as the percentage of the control group that can be detected. The significance level is α = 0.05.