Table 2

Retailer numbers by remoteness

Remoteness of postcode	Postcodes (n)	Retailers (n)	Mean no. of retailers per postcode	% difference in means*
Major cities of NSW	55	1243	22.60	Ref.
Inner regional NSW	23	318	13.83	−39 (−62 to 0)
Outer regional and remote NSW	17	124	7.29	−68 (−84 to −33)
Total:	95	1685	17.74
p-Value for difference in means				0.003

Data are for 1685 retailers (including those without information on price) in the 95 selected postcodes.
*Estimated using Poisson regression with SEs inflated by a scale parameter equal to the Pearson χ² statistic divided by the residual degrees of freedom to account for possible overdispersion.