Comparing the accuracy of two secondary food environment data sources in the UK across socio-economic and urban/rural divides

Table 1 Descriptive statistics and percentage agreement for all food outlets, food outlets by type, and all food outlets across urban/rural divides and socio-economic status quintiles

Food outlet category	Council data		POI data		Missing POI records (%)	Percentage agreement (%)^a	95% CI	95% CI for difference
Food outlet category	n	%	n	%	Missing POI records (%)	Percentage agreement (%)^a	95% CI	95% CI for difference
All Food Outlets	2624	100.00	2100	100.00	19.97	49.9 (REF)	0.482, 0.517	REF
Café/Coffee Shop	366	13.65	223	10.62	39.07	40.6**	0.358, 0.454	0.043, 0.144
Convenience	608	23.17	398	18.65	34.54	29.7**	0.265, 0.330	0.166, 0.239
Restaurant	852	32.47	757	36.05	11.15	63.5**	0.604, 0.665	−0.171, -0.101
Specialist Stores	248	9.45	221	10.52	10.89	47.5	0.419, 0.531	−0.033, 0.082
Supermarket	92	3.51	93	4.43	0.00	62.3*	0.527, 0.712	−0.214, -0.033
Takeaway	458	17.45	408	19.43	10.92	58.6**	0.543, 0.628	−0.132, -0.042
*Urban/Rural*
Urban	1721	65.59	1484	70.67	13.77	52.8 (REF)	0.506, 0.549	REF
Rural	903	34.41	616	29.33	31.78	43.0**	0.400, 0.461	0.061, 0.134
*SES Quintiles*
SES-1 (Least Deprived)	342	13.03	234	11.14	31.58	41.2 (REF)	0.364, 0.461	REF
SES-2	376	14.33	278	13.24	26.06	44.7	0.400, 0.494	−0.101, 0.031
SES-3	602	22.94	552	26.29	8.31	55.0**	0.513, 0.586	−0.198, -0.078
SES-4	627	23.89	523	24.90	16.59	53.9**	0.503, 0.576	−0.187, -0.068
SES-5 (Most Deprived)	677	25.80	513	24.43	24.22	45.1	0.417, 0.486	−0.098, 0.019

^a Significant difference (Fisher’s Exact, **p<0.001, *p<0.05) between food outlet category/area type and reference category (REF) within food outlet category/area type.

ISSN: 1476-072X