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

Table 6 Sensitivity to detect clustering with simulated clusters of four radius sizes.

		Percent of simulated outbreaks that exceeded a threshold
Alarm strategy	Radius	All seasons	Winter	Spring	Summer	Fall
M > 95^th percentile	250 m	53.94	30.15	59.06	78.45	47.33
	500 m	53.22	29.86	58.23	77.53	46.55
	1 km	51.30	28.07	56.04	75.57	44.80
	3 km	38.22	18.64	40.03	63.28	30.38
M > 95^th percentile, by season	250 m	54.75	48.10	55.56	61.47	53.67
	500 m	53.82	47.48	54.24	60.58	52.81
	1 km	51.73	45.72	51.81	59.05	50.18
	3 km	36.24	33.15	36.08	40.31	35.36
MN > 95^th percentile	250 m	66.97	59.54	68.82	75.04	64.25
	500 m	66.41	59.10	67.67	74.96	63.68
	1 km	64.71	57.75	65.94	73.11	61.82
	3 km	51.21	45.32	51.53	60.51	47.33
N and MN rules	250 m	60.67	69.52	55.00	61.18	57.34
	500 m	59.93	69.12	54.10	60.33	56.55
	1 km	58.28	67.91	52.47	58.33	54.81
	3 km	44.44	59.87	36.88	40.21	41.38

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