Real time spatial cluster detection using interpoint distances among precise patient locations

Table 2 Overall sensitivity to detect spatial clustering.

	Percent of simulated outbreaks that exceeded a threshold
Alarm strategy	All seasons ^a	Winter ^b	Spring ^b	Summer ^b	Fall ^b
N > 95^th percentile	8.76	33.33	0.00	0.00	2.56
N > 95^th percentile, by season	16.24	11.40	21.67	19.66	11.97
M > 95^th percentile	49.17	26.68	53.34	73.71	42.26
M > 95^th percentile, by season	49.13	43.61	49.42	55.35	48.01
MN > 95^th percentile	62.32	55.43	63.49	70.90	59.27
N and MN rules	55.83	66.60	49.61	55.01	52.52

a The standard errors for All seasons were all less than or equal to 0.2%.
b The standard errors for Winter, Spring, Summer, and Fall were all less than or equal to 0.5%.

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