Table 3 Results of multiple level analyses

Individual level

Education

Elementary school or less

1.00

Junior high school

0.62

0.38,1.03

High school

0.37

0.18,0.78**

Junior college or college

0.48

0.24,0.93*

Occupation

Managers and clerks

1.00

Professionals

0.52

0.29,1.02

Commerce and service

0.24

0.10,0.62**

Operations

0.27

0.11,0.67**

Students

0.22

0.07,0.70**

Retired

0.24

0.12,0.50**

Other

0.27

0.12,0.59**

Income/person/year Yuan*

<10,000

1.00

10,000-19,999

0.82

0.59,1.13

20,000-29,999

0.42

0.33,0.54**

30,000-39,999

0.21

0.12,0.39**

40,000-49,999

0.21

0.11,0.42**

50,000+

0.27

0.17,0.43**

Regional level

Per Capita GDP(yuan)

<40,000

1.00

40,000-59,999

0.95

0.44,2.21

60,000+

0.28

0.12,0.65**