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. Author manuscript; available in PMC: 2016 May 20.
Published in final edited form as: Prev Vet Med. 2010 Jun 15;96(1-2):104–113. doi: 10.1016/j.prevetmed.2010.05.013

Table 2.

Results of the global spatial autocorrelation by Moran's I statistics, based on HPAI outbreaks by sub-districts, for the 3 study periods and the combined period March 2007-July 2009.

Study period Moran's I statistic Z score P value Pattern Sub-districts
No. of case No. of control
March-July 2007 0.666 6.45 0.001 Clustered 28 458
August 2007-July 2008 0.776 4.73 <0.001 Clustered 112 374
August 2008-July 2009 0.663 3.85 <0.01 Clustered 30 456
March 2007-July 2009 0.183 6.03 0.001 Clustered 138 348