Table 3. Differences in socio-demographic factors by age of main shopper and geographic location of household.

	Proportions (%) of age group 18–64 years (age of main household shopper)	Proportions (%) of age group 65+ years (age of main household shopper)	Odds ratio (95% CI) for age group 65+ years compared to age group 18–64 years
Purchase group > 70 grams per adult per seven days	20.3%	26.6%	1.42 (1.37 to 1.47)
With social grade E	6.0%	14.4%	2.61 (2.49 to 2.75)
With household income £0–7.5k per adult	18.1%	30.7%	2.01 (1.93 to 2.09)
Living in most deprived area	5.0%	4.2%	0.84 (0.77 to 0.90)
	Proportions (%) of rest of Great Britain	Proportions (%) of north of England (North East, North West and Yorkshire and The Humber)	Odds ratio (95% CI) for north of England compared to rest of Great Britain
Purchase group > 70 grams per adult per seven days	21.1%	22.7%	1.10 (1.06 to 1.14)
With age of main household shopper 65+ years	18.8%	20.2%	1.10 (1.06 to 1.14)
With social grade E	7.5%	8.1%	1.09 (1.04 to 1.15)
With household income £0–7.5k per adult	19.8%	21.7%	1.13 (1.09 to 1.17)
Living in most deprived area	2.9%	10.4%	3.90 (3.68 to 4.14)