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Table 3 Results of Episcan tests that allow overlap among identified statistically significant clusters.

From: A procedure to characterize geographic distributions of rare disorders in cohorts

Study Region

Units of analysis

Highly significant clusters, p ≤ 0.01

Significant clusters, 0.01 < p ≤ 0.05

Maximum Relative Risk

Accepted contributing clusters

  

Count

Population range

Count

Population range

  

RC A

Set 11

183

2914, 33009

810

1496, 33463

2.22

269

 

Set 22

50

9074, 32919

186

3729, 33661

1.96

126

RC B

Set 11

0

n.a.

2

11775, 13697

1.50

0

 

Set 22

0

n.a.

1

15599

1.44

0

  1. 1 Maximum unit population of 1,000.
  2. 2 Maximum unit population of 2,000
  3. Accepted contributing clusters have a p ≤ 0.05, RR ≥ 1.7 and birth population ≥ 1000.