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Table 3 Standard power of the prospective space-time scan statistics – flexible and cylindrical – at different days of the outbreak

From: A flexibly shaped space-time scan statistic for disease outbreak detection and monitoring

    Power on Day 31 Power on Day 32 Power on Day 33
Outbreak areas No. of zip codes s* excess risk flex. K = 20 cylind. K = 20 cylind. 50% pop flex. K = 20 cylind. K = 20 cylind. 50% pop flex. K = 20 cylind. K = 20 cylind. 50% pop
Cluster A 1 high 0.764 0.860 0.862 0.988 0.996 0.996 0.999 0.999 0.999
Cluster A5 5 high 0.797 0.850 0.847 0.994 0.996 0.996 1.000 1.000 1.000
The Rockaways 5 high 0.769 0.855 0.840 0.992 0.997 0.997 1.000 1.000 1.000
Hudson River 20 high 0.656 0.597 0.632 0.964 0.933 0.949 0.998 0.994 0.995
Cluster A 1 med. 0.272 0.357 0.357 0.651 0.733 0.737 0.844 0.915 0.916
Cluster A5 5 med. 0.382 0.435 0.428 0.752 0.801 0.795 0.914 0.940 0.941
The Rockaways 5 med. 0.261 0.373 0.348 0.648 0.768 0.759 0.848 0.924 0.917
Hudson River 20 med. 0.290 0.257 0.297 0.631 0.582 0.610 0.845 0.782 0.803