Table 1.

Demographic information

	Percent	Mean	SD	Range
Age		55	7.5	40–70
Sex
Female	52.4
Male	47.6
Ethnic background
British	91.7
Irish	2.7
Any other white background	2.3
Others	3.3
Household income (£)
31 000–51 999	27.7
52 000–100 000	22.6
18 000–30 999	21.7
<18 000	12.4
>100 000	5.4
Age completed full-time education		17	2.3	5–35
Body mass index (BMI)		26.7	4.3	16.1–63.6