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Table 2 Negative binomial regression testing the relationship between Islamist insurgency in 2003 and polio cases in 2003–05 (3-year mean)

From: Islamist insurgency and the war against polio: a cross-national analysis of the political determinants of polio

  1 2 3 4 5 6 7
Islamist insurgency .198** (.094)   .242* (.133)   .192* (.143)   .194* (.136)
Insurgency   5.720 (5.460)     .533 (.533)  
Non-Islamist insurgency   6.618* (6.342)     .601 (.635)
GDP per capita (000)    .875 (.124) .871 (.133) .854 (.151) .856 (.150)
Total population (log)    4.223*** (1.177) 4.086*** (1.133) 5.003*** (2.013) 4.730*** (2.001)
Infant Mortality Rate    1.056*** (.016) 1.054** (.016) 1.059*** (.016) 1.057*** (.016)
Rural population %    1.051 (.032) 1.054 (.033) 1.050 (.030) 1.052 (.030)
Previous polio 2.746*** (1.071) 3.100** (1.118) 3.274** (1.281) .932 (229) .972 (.243) .841 (.258) .885 (.296)
Observations 192 192 192 182 182 182 182
  1. We report incidence rate ratios. Standard errors are in parentheses. Constants are calculated but not reported
  2. * p < .05 (5 %), ** p < .01 (1 %), *** p < .001 (0.1 %)