Table 1.

The influence of patrol effort, period and their interactions on urban bushmeat sales. (Note that although patrol effort is non-significant (n.s.) as a main effect in this model, it is highly significant in the absence of interaction terms (see §3)).

parameter	estimate	s.e.	Wald Χ2	d.f.	p
intercept	4.124	0.123	119.5	1	<0.0001
patrol effort	0.000	0.001	0.031	1	n.s.
period 2	2.429	0.156	243.6	1	<0.0001
period 3	1.256	0.160	61.62	1	<0.0001
patrol effort×period 2	−0.006	0.001	33.91	1	<0.0001
patrol effort×period 3	−0.015	0.003	20.82	1	<0.0001