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Table 1 Variable description

From: Association between falls in elderly and the number of chronic diseases and health-related behaviors based on CHARLS 2018: health status as a mediating variable

Variable

Description of variable setting

Mean

Std. Dev.

Fall

No fall = 0, ordinary fall = 1, medical treatment for fall = 2

.3374808

.654105

Chronic Disease

The number of chronic diseases

.8448952

1.104562

Smoking

Yes = 1, quit = 2, no = 3

2.311062

.8677768

Drinking

Yes = 1, no = 2

1.695585

.4601982

Sleeptime

The amount of time you sleep each day

6.008928

2.065814

Activity

Vigorous-intensity activity = 1, Moderate activity =2, Mild activity = 3

2.078064

.8131051

Depression

The higher the number, the higher the depression level (range 0–30)

9.58991

6.76546

Pain

No = 0, yes = 1

.7030851

.4569377

ADL

ADL ability = 0, ADL disability = 1

.2657235

.4417554

Gender

Male = 1, female = 2

1.544742

.4980366

Age

60 ~ 69 = 1, 70 ~ 79 = 2, 80 ~ ~ = 3

1.506903

.656535

Education

Junior high school or below =1; Senior high school or above =2

1.100051

.3000937

Residence

Urban = 1, rural =2

1.721152

.4484707

Economic status

Continuous variable, take the log of economy

7.540106

3.073686

Marital status

Married = 1, single = 2

1.187489

.3903371

Care

With care =1, without care = 2

1.755071

.4300819