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Table 5 Summary of the results for male and female lung cancer, by community level

From: Detecting cancer clusters in a regional population with local cluster tests and Bayesian smoothing methods: a simulation study

     Male lung cancers Female lung cancers
RR Method   Parameter TP urban FP urban TP rural FP rural TP urban FP urban TP rural FP rural
RR = 2.0 Besag & k = 15 sum 210 80 1 269 27 17 1 361
Newell   DR 0.21   0.00   0.03   0.00  
   PPV 0.72   0.00   0.61   0.00  
   LR+ 202.13     135.9   0.00  
  k = 20 sum 220 40 240 92 39 51 414 384
   DR 0.22   0.24   0.04   0.41  
   PPV 0.85   0.72   0.43   0.52  
   LR+ 423.50   200.87   60.4   69.45  
  k = 30 sum 220 150 1 361 50 57 1 842
   DR 0.22   0.00   0.05   0.00  
   PPV 0.59   0.00   0.47   0.00  
   LR+ 112.93   0.00   67.5   0.00  
Kulldorff   sum 501 3974 92 3770 744 3220 80 3996
spatial scan   DR 0.50   0.09   0.74   0.08  
statistic   PPV 0.11   0.02   0.19   0.02  
   LR+ 9.71   1.88   17.7   1.54  
Local   sum 190 1512 37 1728 34 126 52 1569
Moran’s I   DR 0.19   0.04   0.03   0.05  
exact   PPV 0.11   0.02   0.21   0.03  
   LR+ 9.68   1.65   20.78   2.55  
RR = 4.0 Besag & k = 15 sum 126 172 2 260 242 130 1 368
Newell   DR 0.13   0.00   0.24   0.00  
   PPV 0.42   0.01   0.65   0.00  
   LR+ 56.41   0.59   143.34   0.00  
  k = 20 sum 232 102 224 120 384 382 464 610
   DR 0.23   0.22   0.38   0.46  
   PPV 0.69   0.65   0.50   0.43  
   LR+ 175.14   143.73   77.40   58.57  
  k = 30 sum 250 80 2 321 920 810 2 1105
   DR 0.25   0.00   0.92   0.00  
   PPV 0.76   0.01   0.53   0.00  
   LR+ 240.63   0.48   87.46   0.00  
Kulldorff ’s   sum 999 11542 351 5590 916 6506 155 4469
spatial scan   DR 1.00   0.35   0.92   0.16  
statistic   PPV 0.08   0.06   0.12   0.03  
   LR+ 6.66   4.83   10.84   2.67  
Local   sum 398 732 106 1636 304 1130 72 1588
Moran’s I   DR 0.40   0.11   0.30   0.07  
exact   PPV 0.35   0.06   0.21   0.04  
    LR+ 41.87   4.99   20.72   3.49  
  1. TP = true positive, FP = false positive; DR = detection rate, PPV = positive predictive value.
  2. LR + = likelihood ratio of a positive test result.