Table 8  Probability of true detection (sensitivity) for the MIX model.a
SF = 1  SF = 2  SF = 4  SF = 10
Raised-risk area  θ= 1.5  θ= 2  θ= 3  θ= 1.5  θ= 2  θ= 3  θ= 1.5  θ= 2  θ= 3  θ= 1.5  θ= 2  θ= 3
Simu 1
 10% area (E = 0.84)  0  0  0.05  0  0.02  0.35  0  0.04  0.56  0  0.31  0.54
 25% area (E = 1.10)  0  0.02  0.20  0  0.01  0.30  0  0.16  0.72  0.06  0.53  0.98
 50% area (E = 1.92)  0  0.02  0.33  0  0.10  0.77  0  0.51  0.98  0.05  0.94  1
 75% area (E = 5.37)  0  0.02  0.51  0  0.18  0.90  0  0.67  0.99  0.10  0.98  1
 90% area (E = 7.38)  0  0.05  0.55  0  0.19  0.93  0  0.68  0.99  0.14  0.98  1
Simu 2
 1% cluster (Ē = 5.42)  0.02  0.10  0.86  0.01  0.46  0.99  0.05  0.95  1  0.47  1.00  1.00
Simu 3  θ* = 1.35  θ* = 1.65  θ* = 2.1  θ* = 1.35  θ* = 1.65  θ* = 2.1  θ* = 1.35  θ* = 1.65  θ* = 2.1  θ* = 1.35  θ* = 1.65  θ* = 2.1
 20 × 1% clusters (Ē range: 0.77–11.6)  0.04  0.85  0.99  0.04  0.99  0.99  0.06  0.99  0.99  0.0  0.99  1.00
aDecision rule is D(0.5, 1.5).