Table:
Method of spatial variability	“High-risk” classification	# of census tracts identified as “high-risk”	# of cases residing in “high-risk” census tract	Estimated population within “high-risk” census tract
Unadjusted IR	IR ≥ 2 per 100,000	744	1407	3,126,058
Standardized IR	IR ≥ 2 per 100,000	724	1376	3,151,260
1% cluster detection	Detected within a cluster	93	243	327,824
50% cluster detection	Detected within a cluster	259	412	981,983
Reliable cluster detection	RS ≥ 0.5 and a RR ≥ 2	136	397	507,694

Parse the following content of the picture in markdown code: | Method of spatial variability | “High-risk” classification | # of census tracts identified as “high-risk” | # of cases residing in “high-risk” census tract | Estimated population within “high-risk” census tract | 
 | --- | --- | --- | --- | --- | 
 | Unadjusted IR | IR ≥ 2 per 100,000 | 744 | 1407 | 3,126,058 | 
 | Standardized IR | IR ≥ 2 per 100,000 | 724 | 1376 | 3,151,260 | 
 | 1% cluster detection | Detected within a cluster | 93 | 243 | 327,824 | 
 | 50% cluster detection | Detected within a cluster | 259 | 412 |

981,983 | 
 | Reliable cluster detection | RS ≥ 0.5 and a RR ≥ 2 | 136 | 397 | 507,694 |