Does exposure to the food environment differ by socioeconomic position? Comparing area-based and person-centred metrics in the Fenland Study, UK

Table 4 Home-based supermarket exposure by groups of educational attainment and equivalised income

	Euclidean buffer counts (no. of outlets)			Network buffer counts (no. of outlets)			Proximity to nearest (km)
	800 m	1 km	1 mile	800 m	1 km	1 mile	Mean
Educational attainment ^a (n = 10,276)
Low	0.4 (0.4, 0.5)	0.7 (0.6, 0.7)	1.4 (1.4, 1.5)	0.2 (0.2, 0.2)	0.3 (0.2, 0.4)	1.7 (1.6, 1.8)	3.73 (3.59, 3.88)
Medium	0.5 (0.5, 0.5)	0.7 (0.7, 0.7)	1.5 (1.4, 1.5)	0.2 (0.2, 0.2)	0.3 (0.3, 0.4)	1.7 (1.6, 1.8)	3.90 (3.80, 3.99)
High	1.1 (1.0, 1.1)	1.6 (1.5, 1.6)	3.3 (3.2, 3.4)	0.5 (0.4, 0.5)	0.7 (0.7, 0.8)	3.8 (3.7, 4.0)	2.87 (2.76, 2.98)
p (Highest to lowest)	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
% Difference^c	1175	129	136	150	133	124	-23
Equivalised income ^b (n = 9617)
<£23,000	0.6 (0.5, 0.6)	0.8 (0.8, 0.9)	1.9 (1.8, 2.0)	0.3 (0.2, 0.3)	0.4 (0.4, 0.4)	2.2 (2.0, 2.3)	3.67 (3.54, 3.81)
£23,000–£42,999	0.6 (0.6, 0.7)	0.9 (0.9, 1.0)	2.0 (1.9, 2.1)	0.3 (0.3, 0.3)	0.5 (0.5, 0.5)	2.3 (2.2, 2.4)	3.60 (3.49, 3.71)
≥£43,000	0.8 (0.8, 0.9)	1.2 (1.1, 1.3)	2.6 (2.4, 2.7)	0.4 (0.3, 0.4)	0.6 (0.5, 0.6)	2.9 (2.8, 3.1)	3.34 (3.22, 3.46)
p (Highest to lowest)	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
% Difference^c	33	50	37	33	50	32	-9

Mean values (95% confidence intervals), and statistical and percent difference between the lowest and highest socioeconomic groups
^aEducational attainment: ‘Low’ indicates compulsory school education and corresponding qualifications; ‘Medium’ indicates further education academic or vocational qualifications; ‘High’ represents degree or higher qualifications
^bTotal household income equivalised using a version of the OECD’s modified equivalence scale
^cPercent difference computed as 100*((Higher SES-Lower SES)/lower SES)

ISSN: 1476-072X