Table 3

Test–retest reliability of the single-item by country, sex, age and socioeconomic status

	Past week (r)	Past month (r)
Total sample	0.72	0.82
Country
England	0.87	0.80
Scotland	0.88	0.93
Wales-English	0.73	0.79
Wales-Welsh	0.37	0.71
Sex
Male	0.67	0.85
Female	0.77	0.79
Age
18–24	0.88	0.91
25–34	0.73	0.77
35–44	0.57	0.79
45–54	0.72	0.83
55–64	0.70	0.79
SES
Intermediate	0.85	0.71
Managerial and professional	0.68	0.86
Never worked/long-term unemployed	0.80	0.85
Not classified	0.67	0.80
Routine and manual	0.72	0.82