Characteristics

N

Flossing

χ2

P

n

prevalence (%)

Total

3481

599

17.21

Gender (N = 3480)

7.242

0.007

Male

1247

243

19.49

Female

2233

355

15.90

Ethnic (N = 3477)

6.153

0.046

Han

2503

406

16.22

Mongolia

821

158

19.24

Other

153

33

21.57

Residence Place (N = 3427)

17.945

0.000

Rural

1194

160

13.40

Urban

2233

427

19.12

Faculty (N = 3481)

0.417

0.518

Chinese Medicine

820

135

16.46

Western Medicine

2661

464

17.44