Table 4 The multivariate ordinal regression analysis for depression by health insurance status and background variables among adults in Gansu, China

insurance

Non-insurance

1.40 (1.09-1.82)

.01

1.89 (1.36-2.62)

<.001

Insurance to None

1.22 (0.85-1.76)

.28

2.10 (1.44-3.05)

<.001

Non to Insurance

0.92 (0.63-1.35)

.67

1.45 (1.09-1.95)

.01

insurance

1.00

1.00

CES-D Baseline

<16

1.00

1.00

16-20

1.63 (1.24-2.15)

.001

0.92 (0.69-1.23)

.60

21-25

1.67 (1.26-2.22)

<.001

1.16 (0.85-1.58)

.35

≥26

2.38 (1.84-3.09)

<.001

1.54 (1.15-2.06)

.004

city

Lanzhou

0.98 (0.79-1.21)

.83

1.10 (0.86-1.40)

.44

Baiyin

1.00

.

1.00

.

sex

Male

1.22 (0.95-1.55)

.12

1.13 (0.86-1.49)

.38

Female

1.00

.

1.00

.

Ethnicity

Han

1.23 (0.81-1.87)

.32

0.88 (0.56-1.40)

.59

Minority

1.00

.

1.00

.

age

16-35

0.99 (0.58-1.68)

.97

0.69 (0.39-1.23)

.21

36-45

1.29 (0.80-2.08)

.29

0.87 (0.52-1.44)

.58

46-55

1.25 (0.84-1.86)

.27

0.81 (0.53-1.26)

.35

56-65

1.11 (0.77-1.60)

.58

1.05 (0.72-1.54)

.79

≥66

1.00

.

1.00

.

education

primary school or less

2.08 (1.36-3.19)

.001

1.14 (0.74-1.76)

.56

Junior high school

1.58 (1.11-2.27)

.01

1.04 (0.72-1.50)

.84

High school

1.61 (1.13-2.29)

.01

1.03 (0.71-1.49)

.86

College or more

1.00

.

1.00

.

marriage

Married

0.76 (0.46-1.24)

.27

0.59 (0.30-1.18)

.13

Divorced

1.32 (0.76-2.29)

.32

1.04 (0.50-2.17)

.92

Never-married

1.00

.

1.00

.

employment

Retired

1.04 (0.74-1.49)

.81

0.87 (0.60-1.26)

.45

Unemployed

0.99 (0.76-1.30)

.95

1.00 (0.74-1.35)

.99

employed

1.00

.

1.00

.

Dibao

Yes

1.54 (1.25-1.89)

.00

1.31 (1.05-1.64)

.02

No

1.00

.

1.00

.

Life events

No

1.03 (0.72-1.48)

.85

1.04 (0.73-1.48)

.84

1

1.18 (0.77-1.81)

.45

1.04 (0.68-1.61)

.85

≥2

1.00

.

1.00

.

Physical activity

Yes

0.89 (0.72-1.10)

.29

0.99 (0.79-1.24)

.93

no

1.00

.

1.00

.

drink

No

1.08 (0.73-1.60)

.71

1.08 (0.67-1.76)

.74

Yes

1.00

.

1.00

.

smoke

No

1.00 (0.78-1.29)

.99

0.92 (0.70-1.22)

.56

Yes

1.00

.

1.00

.

BMI

<19

1.67 (1.15-2.42)

.01

1.03 (0.69-1.54)

.88

19-24

1.15 (0.90-1.48)

.27

0.85 (0.65-1.12)

.25

≥25

1.00

.

1.00

.

4-weeks disease

No

0.81 (0.63-1.04)

.10

1.16 (0.87-1.53)

.31

acute disease in 4 weeks

1.02 (0.61-1.69)

.94

1.20 (0.77-1.87)

.42

acute disease > 4 weeks

0.68 (0.25-1.82)

.44

1.37 (0.67-2.81)

.39

Chronic

1.00

.

1.00

.