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Table 2 Theoretical Power Based on Pearson Chi-Square Test and Simple Logistic Regression

From: A power comparison of generalized additive models and the spatial scan statistic in a case-control setting

  Probability of Disease Unexposed Odds Ratios
   0.5 1.0 1.5 2.0 2.5 3.0 3.5
Case 1^ 0.05 0.258 0.050 0.214 0.598 0.884 >0.999  
  0.20 0.731 0.050 0.521 0.953 0.999 >0.999  
Case 2* 0.05 0.255 0.050 0.167 0.331 0.502 0.650 0.766
  0.20 0.565 0.050 0.321 0.663 0.872 0.959 0.988
Case 3* 0.05 0.311 0.050 0.215 0.464 0.695 0.850 0.935
  0.20 0.691 0.050 0.432 0.832 0.970 0.996 >0.999
  1. ^Power for comparison of odds inside to outside cluster
  2. *Power for one standard deviation increase in distance from exposure source