Table 2. Spearman rank correlation between the number of cases in the 8 communes of the Artibonite delta and corresponding p values, Haiti, October 16–31, 2010.

Commune	Spearman correlation (p value)
	L’Estère	Des Dunes	Verrettes	Grande Saline	Petite Rivière de l’Artibonite	Des Salines	St-Marc
Mirebalais	0.231(0.389)	0.527 (0.036)	0.276 (0.301)	0.480 (0.0.059)	0.563 (0.023)	0.361 (0.169)	0.459 (0.074)
St Marc	0.678 (0.004)	0.782 (<0.001)	0.652 (0.006)	0.934 (<0.001)	0.704 (0.002)	0.887 (<0.001)
Des Salines	0.872 (<0.001)	0.713 (0.002)	0.465 (0.069)	0.818(<0.0001)	0.606 (0.013)
Petite Rivière de l’Artibonite	0.672 (0.004)	0.675 (0.004)	0.586 (0.017)	0.648 (0.007)
Grande Saline	0.600 (0.014)	0.848 (<0.001)	0.783 (<0.001)
Verrettes	0.380 (0.147)	0.600 (0.014)
Des Dunes	0.537 (0.032)