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Table 1 Description of dependent and independent variables

From: The inequality of inpatient care net benefit under integration of urban-rural medical insurance systems in China

  Description Indicators/survey questions
Dependent variable
 Net benefit of inpatient care the absolute amount of reimbursement received(yuan RMB) Subtract individual payment from the total hospitalization expense
Independent variables
 Gender =1 if male; =2 if female.  
 Age =1 if≤45; =2 if 45–59; =3 if ≥60.  
 Marital status =1 if married; =2 if divorced/single/separated/other. Question: What is your present marital status?
 Educational level =1 if under primary school; =2 if junior; =3 if high school or above. The highest degree of education received or a degree equivalent to an existing cultural level
 Chronic =1 if no chronic; =2 if one or multiple chronic. Question: Have you been diagnosed with any chronic diseases by a doctor? Chronic diseases listed subsequently.
 Distance to the medical institution =1 if < 1 km; =2 if≥1 km. Question: How many kilometers is the nearest medical institution from your home?
 Willingness to seek medical services =1 if primary hospital(village/private clinics/community health service station/township hospital/community health service center); =2 if general hospital or TCM hospital (traditional Chinese medicine) Question: For general diseases, what kind of medical institutions do you and your family members go to?
 Health status (EQ-VAS: self-reported) =1 if very poor(0–20); =2 if poor(21–40); =3 if medium(41–60); =4 if good(41–80); =0 if excellent(81–100). Health status on a 20 cm vertical scale with end points of 0 and 100 was asked on the day of the interview.
 Employment status =1 if employment; =2 if retirement; =3 if student or unemployment. Question: What is your present employment situation? [conditions listed below, read one by one]
 Per capita income Household per capita income over the last year(yuan RMB)