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Table 1 Negative binomial regression models for rainfall, previous chicken seroconversion and season by rainfall district

From: Rainfall and sentinel chicken seroconversions predict human cases of Murray Valley encephalitis in the north of Western Australia

  District 10 District 20 District 30 District 40 District 50
  p Odds 95% CI p Odds 95% CI p Odds 95% CI p Odds 95% CI p Odds 95% CI
Rain_1 NS - - - NS - - - NS - - - NS - - - <0.001 1.075 1.035 1.116
Rain_2 <0.001 1.047 1.023 1.071 .001 1.051 1.019 1.084 .001 1.041 1.016 1.066 <0.001 1.100 1.060 1.141 <0.001 1.093 1.049 1.139
Rain_3 .014 1.028 1.006 1.051 .003 1.052 1.017 1.088      .006 1.047 1.013 1.081 <0.001 1.113 1.063 1.165
Chick_1 .042 1.028 1.001 1.056 <0.001 1.043 1.024 1.063 <0.001 1.065 1.042 1.088 <0.001 1.060 1.032 1.089 <0.001 1.048 1.020 1.076
Summer .143 2.655 .718 9.813 .013 13.466 1.750 103.634 .002 5.617 1.855 17.012 .780 .880 .358 2.161 - - - -
Autumn .364 2.003 .446 8.985 .074 7.103 .828 60.915 <0.001 13.322 4.245 41.807 .008 3.134 1.349 7.283 - - - -
Winter .029 4.316 1.163 16.023 .253 3.499 .409 29.944 .001 6.913 2.258 21.171 .029 2.487 1.098 5.632 - - - -
Spring (ref) . 1 . . . 1 . . . 1 . . . 1 . . - - - -
  1. NS = Not significant so not included in the model.