Table 2.

Cluster detection of anthrax case farms, Saskatchewan, 2006

Analysis type	Cluster	Time period	RMs in cluster	Expected cases	Observed cases	Relative risk	P-value	Cluster radius (kma)
RM
level	primary	June 25 – August 5	53	N/Ab	N/A	N/A	0.01	N/A
spatiotemporal	secondary	July 23–29	2	N/A	N/A	N/A	0.01	N/A
scan analysis	secondary	July 30 – August 5	1	N/A	N/A	N/A	0.02	N/A
Individual
level	primary	June 30 – July 29	N/A	12.1	37	3.9	0.001	56.69
spatiotemporal	secondary	July 20 – August 18	N/A	10.2	31	3.7	0.001	61.74
scan analysis	secondary	July 10 – August 7	N/A	8.9	26	3.6	0.001	106.69

RM — rural municipality.

^akm = kilometers.

^bN/A = not applicable.