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Table 5 FGLS estimation results of the rural elderly annual income model

From: The impact of informal social support on the health poverty vulnerability of the elderly in rural China: based on 2018 CHARLS data

Explanatory variables

Explained variable: logarithm of annual income of rural population

Explained variable: the logarithm of the squared residual term

Coefficient estimation

T value

Coefficient estimation

T value

Self-evaluation of health

-0.032a

(0.011)

-2.80

-0.478a

-10.22

 

(0.047)

 

Pain

-0.071a

(0.022)

-3.29

-0.377a

-4.24

 

(0.089)

 

Chronic disease

-0.004

-0.28

-0.417a

-5.02

(0.016)

 

(0.083)

 

Gender

-0.124a

-4.13

-2.311a

-26.19

 

(0.030)

 

(0.088)

 

Age

-0.004a

-4.07

-0.038a

-5.99

 

(0.001)

 

(0.006)

 

Marital status

-0.007

-0.78

0.096

1.81

 

(0.009)

 

(0.053)

 

Smoking

0.036

0.58

0.292

1.25

(0.062)

 

(0.234)

 

Drinking

0.031

1.22

0.421a

4.51

(0.025)

 

(0.093)

 

Checking blood pressure regularly

0.033a

2.30

0.110

1.33

(0.015)

 

(0.083)

 

Checking for diabetes often

0.123a

2.80

0.612a

2.81

(0.044)

 

(0.218)

 

Participating in the new rural cooperative medical insurance

-0.484a

-4.27

-2.892a

-21.64

(0.113)

 

(0.134)

 

Taking out critical illness insurance

0.005

0.10

0.638a

3.08

(0.047)

 

(0.207)

 

Whether medicaid

-0.173

-0.49

1.368a

2.23

(0.353)

 

(0.613)

 

Master self-treatment

-0.053a

-3.11

-0.400a

-4.81

(0.017)

 

(0.083)

 

Medical distance

0.001

1.48

0.008a

3.69

 

(0.0001)

 

(0.002)

 

Medical service satisfaction

-0.0003

-0.05

0.066

1.92

 

(0.006)

 

(0.034)

 

Number of hospitalizations in a year

-0.012

-1.81

-0.041

-0.91

 

(0.007)

 

(0.046)

 

Received medicaid last year

-9.61E-06a

-2.48

-0.0003a

-2.80

 

(3.87E-06)

 

(0.0001)

 

Constant term

9.218a

60.22

7.203a

14.47

  1. ameans significant at the 5% level, the brackets represent standard error