A serial mediation model of physical exercise and loneliness: the role of frailty and depression

BMC Geriatrics

Table 1 Descriptive information

Variables	Group	N	%
Age (years)	60–69	445	88.1
	70–79	56	11.1
	≥ 80	4	0.8
Sex	male	287	56.8
	female	218	43.2
Residence	urban	487	96.4
	rural	18	3.6
Marital Status	married	491	97.2
	divorced	3	0.6
	single	1	0.2
	widowed	10	2.0
Living Arrangement	with children	341	67.5
	only with spouse	151	29.9
	living alone	11	2.2
	other	2	0.4
Personal Annual Income	0–10,000 yuan	13	2.6
	10,000–30,000 yuan	40	7.9
	30,000–50,000 yuan	171	33.9
	50,000–80,000 yuan	221	43.8
	80,000-120,000 yuan	46	9.1
	120,000-200,000 yuan	10	2.0
	200,000 yuan and above	4	0.8

ISSN: 1471-2318