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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Spat Spatiotemporal Epidemiol. 2011 Sep 29;2(4):291–300. doi: 10.1016/j.sste.2011.09.001

Table 4.

Conditional permutation test applied with adjusted significance cutoffs

N = 400
Type I Error (95%CI)		 N = 1,600
Type I Error (95%CI)		 N = 6,400
Type I Error (95%CI)
P(Disease) α = 0.01 α = 0.05 α = 0.10 α = 0.01 α = 0.05 α = 0.10 α = 0.01 α = 0.05 α = 0.10
α* = 0.004 α* = 0.025 α* = 0.055 α* = 0.004 α* = 0.025 α* = 0.055 α* = 0.004 α* = 0.025 α* = 0.055
Circle
 0.01 0.014 (0.007,0.021) 0.052 (0.038,0.066) 0.083 (0.066,0.100) 0.007 (0.002,0.012) 0.053 (0.039,0.067) 0.104 (0.085,0.123) 0.017 (0.009,0.025) 0.049 (0.036,0.062) 0.105 (0.086,0.124)
 0.10 0.009 (0.003,0.015) 0.057 (0.043,0.071) 0.105 (0.086,0.124) 0.007 (0.002,0.012) 0.050 (0.036,0.064) 0.097 (0.079,0.115) 0.015 (0.007,0.023) 0.047 (0.034,0.060) 0.101 (0.082,0.120)
 0.50 0.018 (0.010,0.026) 0.056 (0.042,0.070) 0.104 (0.085,0.123) 0.014 (0.007,0.021) 0.051 (0.037,0.065) 0.105 (0.086,0.124) 0.017 (0.009,0.025) 0.060 (0.045,0.075) 0.115 (0.095,0.135)
City
 0.01 0.009 (0.003,0.015) 0.043 (0.03,0.056) 0.094 (0.076,0.112) 0.008 (0.002,0.014) 0.055 (0.041,0.069) 0.114 (0.094,0.134) 0.016 (0.008,0.024) 0.065 (0.050,0.080) 0.109 (0.090,0.128)
 0.10 0.023 (0.014,0.032) 0.069 (0.053,0.085) 0.123 (0.103,0.143) 0.011 (0.005,0.017) 0.063 (0.048,0.078) 0.119 (0.099,0.139) 0.010 (0.004,0.016) 0.051 (0.037,0.065) 0.094 (0.076,0.112)
 0.50 0.017 (0.009,0.025) 0.070 (0.054,0.086) 0.121 (0.101,0.141) 0.009 (0.003,0.015) 0.06 (0.045,0.075) 0.119 (0.099,0.139) 0.019 (0.011,0.027) 0.055 (0.041,0.069) 0.095 (0.077,0.113)
Lake
 0.01 0.006 (0.001,0.011) 0.035 (0.024,0.046) 0.082 (0.065,0.099) 0.014 (0.007,0.021) 0.056 (0.042,0.070) 0.107 (0.088,0.126) 0.013 (0.006,0.020) 0.052 (0.038,0.066) 0.101 (0.082,0.120)
 0.10 0.016 (0.008,0.024) 0.071 (0.055,0.087) 0.116 (0.096,0.136) 0.007 (0.002,0.012) 0.051 (0.037,0.065) 0.096 (0.078,0.114) 0.016 (0.008,0.024) 0.052 (0.038,0.066) 0.094 (0.076,0.112)
 0.50 0.012 (0.005,0.019) 0.062 (0.047,0.077) 0.116 (0.096,0.136) 0.009 (0.003,0.015) 0.056 (0.042,0.070) 0.104 (0.085,0.123) 0.008 (0.002,0.014) 0.042 (0.030,0.054) 0.077 (0.060,0.094)