Table 1.

Descriptive statistics of the distribution of incidence rates and kriged risks for cholera and dysentery in Matlab, 1994.

Statistics	Cholera		Dysentery
	Kriged risk	Observed rate	Kriged risk	Observed rate
N	13689	6017	13689	6017
Mean	3.7238	3.8512	2.6841	2.7732
Std. Deviation	3.5083	20.134	2.4847	14.776
Minimum	0.00	0.00	0.00	0.00
Maximum	40.93	500.00	15.92	250

Units are number of cases per 1,000 habitants.