Table 1. Sample demographic characteristics.

Demographic characteristics	N (%)
Annual household income
Less than £16,100	71 (11.85)
£16,100 - £21,249	72 (12.02)
£21,250 - £27,999	78 (13.02)
£28,000 - £38,399	117 (19.53)
More than £38,399	261 (43.57)
Total	599 (100)
Adults in household
Single adult	117 (19.12)
Two adults	463 (75.65)
Three adults or more	32 (5.23)
Total	612 (100)
Children in household
One child	161 (26.83)
Two children	329 (54.83)
Three children or more	110 (18.33)
Total	600 (100)