Table 2.

Descriptive statistics of variables (N = 6,223).

Variable	Category/min value	Frequency/max value	Percentage (%) /mean
Dietary pattern	0.00	18.00	10.724
Anxiety	7.00	28.00	26.388
Living arrangement	Alone	1,093	17.6
	With family	4,987	80.1
	Institutional living	143	2.3
Loneliness	Always	154	2.5
	Often	361	5.8
	Sometimes	1,249	20.1
	Rarely	2,161	34.7
	Never	2,298	36.9
Ethnicity	Minority	405	6.5
	Han	5,818	93.5
Gender	Female	3,851	61.9
	Male	2,372	38.1
Age	Younger group	2,272	36.5
	Older group	3,951	63.5
Residence	Rural	3,186	51.2
	Urban	3,037	48.8
Marital status	Separated/Divorced/Unmarried/Widowed	3,708	59.6
	Married and cohabiting	2,515	40.4
Education level	No formal education	3,693	59.3
	Primary school	2,423	38.9
	Secondary or above	108	1.7
Sufficient income	No	982	15.8
	Yes	5,241	84.2
Occupation before 60	Agricultural	4,836	77.7
	Non-agricultural	1,387	22.3
Health insurance	No	3,946	63.4
	Yes	2,277	36.6
Exercise	No	4,484	72.1
	Yes	1,739	27.9

Dietary pattern and anxiety are numerical variables, with descriptive analysis presenting their minimum values, maximum values, and means. The remaining variables are categorical, and their descriptive analysis presents categories, frequencies, and percentages.