Table 2 Regression model variable settings and descriptive statistics results
Variable | Variable Definitions and Descriptions | (1) | (2) | (3) | (4) |
|---|---|---|---|---|---|
Full Sample (n = 16,726) | Processing Group in 2015 (n = 661) | Control Group in 2015 (n = 16,065) | t-test for (2)-(3) | ||
Mean | Mean | Mean | |||
Key Variable | |||||
 Did | Interaction term consisting of a processing group dummy variable and a time dummy variable |  | |||
 Time | Wave 3 (2015) = 0, wave 4 (2018) = 1 | ||||
 Treated | Participating LTCI = 1, not participating LTCI = 0 | ||||
Dependent Variables | |||||
 LMOT | Number of outpatient visits in the past month | 0.407 | 0.463 | 0.405 | 1.121 |
 LMOC | Total outpatient expenses in the past month (¥) | 258.147 | 486.110 | 248.767 | 2.849*** |
 LYHT | Number of hospitalizations in the past year | 0.197 | 0.216 | 0.196 | 0.818 |
 LYHC | Total hospitalization costs in the past year (¥) | 1588.443 | 1916.380 | 1574.950 | 0.995 |
Control Variables | |||||
 Gender | Male = 1, Female = 0 | 0.480 | 0.495 | 0.480 | 0.764 |
 Age | The year of birth of the respondent is used as the starting date and the year of the survey is used as the cut-off date to calculate the age of the respondent as a continuous variable of 45 and above | 59.801 | 60.174 | 59.785 | 1.005 |
 Marital | Married = 1, not married = 0 | 0.873 | 0.899 | 0.872 | 2.036** |
 Retire | Retired = 1, not retired = 0 | 0.298 | 0.340 | 0.296 | 2.426** |
 Education | Illiterate or semi-literate = 1, primary = 2, lower secondary = 3, upper secondary and above = 4 | 1.923 | 1.968 | 1.921 | 1.162 |
 Live | Classified according to the National Bureau of Statistics of China, rural = 1, urban = 0 | 0.626 | 0.283 | 0.640 | -18.802*** |
 Area | West = 1, Central = 2, East = 3 | 1.962 | 1.826 | 1.967 | -4.234*** |
 Asset |  ≤ 700 = 1, 700 ~ 6000 = 2, 6000 ~ 28,713 = 3, > 28,714 = 4 | 2.454 | 2.678 | 2.445 | 5.823*** |
 Care | Someone helps to look after = 1, none helps to look after = 0 | 0.701 | 0.699 | 0.701 | -0.122 |
 Barthel | Self-care = 1, mild functional impairment = 2, Moderate functional impairment = 3, Severe functional impairment = 4 | 1.227 | 1.144 | 1.230 | -4.679*** |
 Selfhealth | Very good = 1, good = 2, fair = 3, poor = 4, very poor = 5 | 2.911 | 2.825 | 2.915 | -2.372** |
 Chronic | Number of chronic disease categories, as a continuous variable | 1.697 | 1.694 | 1.698 | -0.055 |
 Smoke | Smoker = 1, nonsmoker = 0 | 0.285 | 0.325 | 0.283 | 2.343** |
 Drink | Drinker = 1, nondrinker = 0 | 0.626 | 0.750 | 0.621 | 6.757*** |