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Table 2 Negative binomial results, full and final models, Lower Mainland, less Vancouver

From: An evaluation of bylaw and policy changes on pharmacy robberies in British Columbia

 

Estimated parameter

Std. error

Relative risk ratio

Full model

 Bylaw

− 0.633

0.658

0.531

 Bylaw trend

− 0.125

0.108

0.882

 Month

− 0.048

0.145

0.953

 Month-squared

0.004

0.01

1.004

 Number of days

− 0.091

0.121

0.913

 Trend

0.029

0.018

1.030

 Trend-squared

− 0.001

0.001

0.999

Final model

 Bylaw trend

− 0.228

0.087

0.796***

  1. Policy change variables (Bylaw and Bylaw trend), seasonality variables (Month and Month-squared), and overall trend variables (Trend and Trend-squared)
  2. *p < 0.10; **p < 0.05; ***p < 0.01
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Crime Science

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