Table 2 Logistic regression results of the elderly with mild illness

Gender(reference: Male)

-

-

-

-

female

-0.57**

(0.34,0.95)

-

-

-

-

Age group (reference: 60–69 years-old)

70–79

0.43***

(0.25,0.74)

0.58

(0.26,1.28)

0.37**

(0.17,0.81)

80 and above

0.89

(0.42,1.89)

1.42

(0.49,4.14)

0.63

(0.2,2.00)

Marital status (reference: single)

Married with a spouse

0.62

(0.12,3.26)

0.57

(0.05,6.08)

0.54

(0.04,7.45)

Divorce/widow

1.81

(0.32,10.27)

0.76

(0.05,10.62)

2.02

(0.14,28.26)

Cohabitation status (reference: living alone)

Couple living together

2.27

(0.83,6.24)

4.65

(0.41,52.70)

2.06

(0.58,7.29)

Live with relatives

2.92

(0.68,12.52)

5.51

(0.31,96.43)

2.75

(0.42,18.09)

Live with children

1.81

(0.72,4.50)

4.00

(0.37,42.66)

1.49

(0.52,4.31)

Live with three generations

1.27

(0.40,4.00)

3.57

(0.28,45.75)

0.99

(0.22,4.41)

Education level (reference: elementary school and below)

Junior high school

1.47

(0.72,3.01)

1.53

(0.49,4.77)

1.36

(0.51,3.67)

Secondary school

1.85

(0.84,4.03)

2.02

(0.59,7.00)

1.68

(0.56,5.02)

College and above

1.37

(0.54,3.43)

1.68

(0.43,6.50)

0.97

(0.23,4.16)

Occupation before retirement (reference: unemployed)

Governmental institutions

0.35**

(0.13,0.92)

0.46

(0.10,2.14)

0.29*

(0.08,1.15)

Collective enterprises

1.15

(0.61,2.18)

0.71

(0.18,2.83)

1.35

(0.63,2.88)

Private and others

2.67**

(1.16,6.13)

3.90**

(1.17,12.98)

2.01

(0.53,7.63)

Monthly income (reference: less than 2,000 yuan)

2000–3999

1.90

(0.75,4.83)

1.03

(0.22,4.83)

2.11

(0.59,7.47)

4000–5999

2.46*

(0.87,6.92)

1.83

(0.39,8.52)

2.81

(0.61,12.9)

6000 and above

3.87**

(1.12,13.39)

2.99

(0.48,18.56)

3.80

(0.51,28.36)

Physical condition (reference: unhealthy)

Moderately healthy

0.73

(0.35,1.51)

0.34*

(0.11,1.04)

1.22

(0.43,3.46)

Healthy

1.46

(0.70,3.04)

0.57

(0.18,1.83)

2.51*

(0.87,7.21)

Chronic disease (reference: none)

One

0.89

(0.53,1.50)

0.88

(0.39,1.99)

0.88

(0.42,1.85)

Two

1.59

(0.85,2.97)

1.18

(0.40,3.45)

1.78

(0.79,4.05)

Three or more

1.20

(0.50,2.86)

0.93

(0.24,3.57)

1.64

(0.47,5.77)

Basic medical insurance (reference: not participated)

Participated

1.58

(0.57,4.41)

2.49

(0.27,22.82)

1.33

(0.39,4.54)

Place of residence (reference: rural)

urban

4.63**

(1.37,15.68)

2.39

(0.46,12.36)

12.56**

(1.34,117.98)

Household registration (reference: non-Shanghai hukou)

Shanghai hukou

1.62

(0.52,5.11)

1.50

(0.30,7.43)

1.51

(0.27,8.46)

Constant

0.23***

(0.00,0.29)

0.03

(0.00,2.34)

0.01***

(0.00,0.26)

R²

0.11

0.11

0.13

N

611

215

396