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Table 2 Simulation results for cluster model B (one circular cluster, 30% of total area) with a mean survival time of 5

From: Optimizing the maximum reported cluster size in the spatial scan statistic for survival data

  % of cens   Maximum reported cluster size (MRCS) Default Setting
3% 4% 5% 6% 8% 10% 12% 15% 20% 25% 30% 35% 40% 45% 50% Overall
Circular window 10% Frequency 0 0 0 0 0 1 1 1 1 22 792 166 16 0 0   1000
Sensitivity 0.850 0.900 0.800 0.700 0.793 0.985 0.996 0.994 0.982 0.982
PPV 0.895 0.783 1.000 0.667 1.000 1.000 0.928 0.820 0.984 0.985
30% Frequency 0 0 0 0 0 0 2 1 4 61 678 252 2 0 0   1000
Sensitivity 0.725 0.700 0.513 0.76 0.975 0.999 0.925 0.966 0.966
PPV 1.000 0.778 1.000 0.986 0.999 0.935 0.771 0.981 0.982
50% Frequency 0 0 0 0 0 0 3 0 4 42 800 149 2 0 0   1000
Sensitivity 0.733 - 0.563 0.810 0.976 1.000 0.875 0.970 0.970
PPV 1.000 - 1.000 0.998 0.999 0.924 0.716 0.987 0.987
70% Frequency 0 0 0 0 0 0 0 0 1 8 851 113 9 18 0   1000
Sensitivity 0.450 0.744 0.909 0.989 0.978 0.989 0.918 0.918
PPV 1.000 1.000 0.997 0.912 0.778 0.699 0.980 0.980
Elliptical window 10% Frequency 0 0 0 0 0 0 1 4 3 24 757 176 31 3 1   1000
Sensitivity 0.700 0.875 0.717 0.796 0.981 0.988 0.987 1.000 1.000 0.977 0.977
PPV 0.875 0.825 0.955 0.995 0.997 0.921 0.796 0.732 0.606 0.975 0.976
30% Frequency 0 0 0 0 0 0 2 0 13 90 619 262 12 1 1   1000
Sensitivity 0.750 - 0.627 0.761 0.970 0.992 0.983 1.000 1.000 0.952 0.953
PPV 0.917 - 1.000 0.991 0.997 0.926 0.766 0.741 0.606 0.974 0.973
50% Frequency 0 0 0 0 0 0 1 0 6 74 750 156 10 2 1   1000
Sensitivity 0.750 - 0.633 0.764 0.967 0.990 0.970 1.000 1.000 0.954 0.953
PPV 1.000 - 1.000 0.995 0.995 0.916 0.765 0.742 0.625 0.980 0.979
70% Frequency 0 0 0 0 0 0 0 1 3 15 666 156 147 8 4   1000
Sensitivity 0.900 0.583 0.753 0.907 0.956 0.993 0.969 1.000 0.925 0.925
PPV 0.900 1.000 1.000 0.997 0.876 0.812 0.686 0.616 0.947 0.946
  1. % of cens, percentage of censoring; PPV, positive predictive value
  2. Cells most often selected as the optimal MRCS are shown in italics