Table 1a.

Outcome Measure for this Study.

	Total		High		Middle		Low
	(n = 21,004)		(n = 2,879)		(n = 8,895)		(n = 9,230)
	n	%	n	%	n	%	n	%
Participation of sports group or club
Non-membership	13,011	62.0	1,679	58.3	5,438	61.1	5,894	63.9
Membership	3,898	18.6	613	21.3	1,740	19.6	1,545	16.7
Missing	4,095	19.5	587	20.4	1,717	19.3	1,791	19.4
Participation of hobby group
Non-membership	10,927	52.0	1,363	47.3	4,529	50.9	5,035	54.6
Membership	6,442	30.7	1,032	35.9	2,840	31.9	2,570	27.8
Missing	3,635	17.3	484	16.8	1,526	17.2	1,625	17.6
Social network contact
Low	8,657	41.2	1,027	35.7	3,463	38.9	4,167	45.2
High	10,913	52.0	1,647	57.2	4,818	54.2	4,448	48.2
Missing	1,434	6.8	205	7.1	614	6.9	615	6.7
Social network size
0-5	9,351	44.5	1,117	38.8	3,808	42.8	4,426	48.0
6 ≦	10,052	47.9	1,561	54.2	4,401	49.5	4,090	44.3
Missing	1,601	7.6	201	7.0	686	7.7	714	7.7
Homebound
Homebound	1,543	7.4	189	6.6	642	7.2	712	7.7
Not homebound	18,346	87.4	2,537	88.1	7,759	87.2	8,050	87.2
Missing	1,115	5.3	153	5.3	494	5.6	468	5.1
Marital status
Unmarried	5,800	27.6	938	32.6	2,472	27.8	2,390	25.9
Married	14,885	70.9	1,898	65.9	6,281	70.6	6,706	72.7
Missing	319	1.5	43	1.5	142	1.6	134	1.5