Table 2

Average duration of care giving at follow-up period by social participation*

	n	ALL*	Care Lv1+	Care Lv2+	Care Lv3+	Care Lv4+	Care Lv5
	n	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)
Hobby activities group
Never	2833	14.1 (25.8)	9.8 (21.4)	7.1 (17.6)	4.0 (12.5)	2.2 (8.5)	0.8 (4.6)
A few times a year	259	9.0 (19.4)	5.6 (15.7)	3.5 (9.9)	1.8 (6.4)	1.2 (5.3)	0.6 (4.1)
Once or twice a month	524	10.7 (21.8)	6.1 (16.6)	4.6 (14.4)	2.7 (10.2)	1.6 (7.5)	0.6 (3.7)
Once a week +	972	10.6 (21.8)	6.2 (16.6)	4.1 (13.2)	2.2 (9.3)	1.0 (6.0)	0.4 (3.0)
		p<0.001	p<0.001	p<0.001	p<0.001	p=0.019	p=0.026
Sports group or club
Never	3716	13.7 (25.1)	9.3 (20.7)	6.6 (17.0)	3.8 (12.1)	2.1 (8.4)	0.8 (4.6)
A few times a year	91	7.5 (19.6)	5.6 (18.4)	4.8 (16.5)	2.8 (12.0)	1.2 (5.5)	0.8 (5.0)
Once or twice a month	125	6.0 (17.3)	3.3 (13.4)	2.7 (12.5)	1.4 (6.9)	0.5 (2.6)	0.2 (1.4)
Once a week +	572	7.2 (18.1)	3.8 (12.8)	2.4 (9.8)	1.0 (5.4)	0.5 (3.4)	0.1 (1.0)
		p<0.001	p<0.001	p<0.001	p<0.001	p<0.001	p=0.005
Volunteer group
Never	3899	12.9 (24.4)	8.6 (20.0)	6.1 (16.4)	3.5 (11.6)	1.9 (7.9)	0.7 (4.3)
A few times a year	194	7.1 (17.3)	3.9 (12.8)	2.9 (11.1)	1.6 (8.3)	1.1 (7.7)	0.7 (5.6)
Once or twice a month	193	9.9 (21.6)	6.1 (17.0)	4.3 (13.3)	2.0 (8.9)	1.1 (7.2)	0.4 (2.7)
Once a week +	122	6.4 (17.5)	3.9 (12.4)	3.1 (10.9)	1.6 (6.9)	0.8 (3.2)	0.2 (1.5)
		p<0.001	p<0.001	p<0.001	p<0.001	p=0.019	p=0.165

*This is including certification for long-term care level from support level one to care level 5.
Unit: month.