Detecting cancer clusters in a regional population with local cluster tests and Bayesian smoothing methods: a simulation study

Table 2 Power of the Kulldorff spatial scan statistic, the Besag & Newell statistic, and the local Moran’s I statistic for detecting spatial clustering

			Census tracts					Communities
			Besag & Newell			Kulldorff spatial scan statistic	Local Moran’s I	Besag & Newell			Kulldorff spatial scan statistic	Local Moran’s I
			k = 5	k = 10	k = 13			k = 15	k = 20	k = 30
RR = 2.0	urban	Males	1.0	1.0	1.0	1.0	1.0	0.21	0.22	0.23	0.86	0.78
	urban	Females	1.0	1.0	1.0	1.0	1.0	0.25	0.39	0.42	0.76	0.84
	rural	Males	1.0	1.0	1.0	1.0	1.0	0.19	0.21	0.22	0.75	0.82
	rural	Females	1.0	1.0	1.0	1.0	1.0	0.22	0.4	0.35	0.73	0.82
RR = 4.0	urban	Males	1.0	1.0	1.0	1.0	1.0	0.22	0.23	0.26	1.0	0.63
	urban	Females	1.0	1.0	1.0	1.0	1.0	0.25	0.36	0.9	0.98	0.78
	rural	Males	1.0	1.0	1.0	1.0	1.0	0.19	0.21	0.25	0.8	0.83
		Females	1.0	1.0	1.0	1.0	1.0	0.23	0.49	0.48	0.74	0.83

ISSN: 1476-072X