. 2014 Jan 22;9(1):e86788. doi: 10.1371/journal.pone.0086788

Table 3. Results from the final piecewise multiple linear regression model.

Environmental variable(associated dimension)	Coefficient(95% confidence interval)	p value
Turkey breeder population density (1^st)	0.137 (0.058 to 0.216)	0.001
Broiler breeder population density (1^st)	0.065 (0.028 to 0.102)	0.001
Industrial, commercial and transport units (1^st)	0.041 (0.001 to 0.080)	0.042
Arable land (2^nd)	−0.061 (−0.094 to −0.028)	<0.0001
Other poultry population density (2^nd)	−0.037 (−0.070 to −0.003)	0.032
Duck and goose farm density (1^st)	−0.113 (−0.195 to 0.031)	0.007

Coefficients, 95% confidence intervals and p values for the associations between the selected environmental variables with the three sets of NMDS dimension scores for the 27 H5N2 LPAI outbreaks.