Table 2.

Characteristics of the samples

	Total sample (n = 923)		Test-retest sample (n = 100)
Variable	n	%	N	%
Gender
Female	535	58	82	82
Male	388	42	18	18
Age
20 to 29 years old	155	17	13	13
30 to 39 years old	167	18	17	17
40 to 49 years old	231	25	20	20
50 to 59 years old	238	26	24	24
60 to 65 years old	132	14	26	26
Ethnic group
White	837	91	93	93
Black	20	2	1	1
Asian	40	4	3	3
Mixed	15	2	0	0
Other	11	1	3	3
Marital status
Single	235	25	23	23
Marrieda	590	64	64	64
Separated/Widowedb	98	11	13	13
Education
Primary/secondary school	79	9	13	13
O level to A levelsc	289	31	37	37
Certificate/Diplomad	212	23	18	18
Degreee	343	37	32	32
Employment situation
Paid workf	567	61	54	54
Unpaid work/unemployedg	210	23	24	24
Student	40	4	4	4
Retired	106	12	18	18
Living arrangement
Own your homeh	537	58	66	66
Rentingi	312	34	30	30
Living with parents/University hallsj	74	8	4	4
Weight status
Underweightk	23	3	4	4
Normal weightl	363	39	43	43
Overweightm	273	30	24	24
Obesen	250	27	27	27
Missingo	14	1	2	2

^aMarried or living as married. ^bSeparated, divorced or widowed. ^cO level/GCSEs/A levels. ^dTechnical or trade certificate/Diploma. ^eDegree or Post-graduate degree. ^fEmployed full-time/Employed part-time/Self-employed ^gUnemployed/Full-time homemaker/Unpaid or voluntary work/Disable or too ill to work. ^hOwn your home outright/ Own your home with mortgage. ⁱRent from local authority or housing association/Rent privately. ^jLiving with parents/Living in University or College halls. ^kBMI from 14 to 18.49 Kg/m². ^lBMI from 18.5 to 24.99 Kg/m². ^mBMI from 25 to 29.99 Kg/m². ⁿBMI from 30 to 50 Kg/m². ^oMissing data includes: 2 participants with no data; 10 participants with BMI greater than 50 Kg/m² and 2 participants with BMI lower than 14 Kg/m²