Table 2

Geo-statistical test for randomness, using the minimum distance between neighbor cases of same value (risk α = 0.1%).

T

V

10

20

30

40

50

60

70

80

90

100

150

200

300

400

500

7

H1

H1

H1

H1

H1

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

14

H1

H1

H1

H1

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

21

H1

H1

H1

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

28

H1

H1

H1

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

H0

Parameter values are as in Table 1 (T and V); H0 = null hypothesis (cannot be differentiated from a random pattern); H1 = alternative hypothesis (non random pattern).

Souris et al. International Journal of Health Geographics 2010 9:3   doi:10.1186/1476-072X-9-3