Table 1. Independent variables and coding for regression modeling.
| Variable | Characteristic | Coding |
|---|---|---|
| Sex | ||
| Female | 0 | |
| Male | 1 | |
| Age | ||
| 60 years and older | 0 | |
| Below 15 years | 1 | |
| 15–29 years | 1 | |
| 30–44 years | 1 | |
| 45–59 years | 1 | |
| Marital Status | ||
| Married | 1 | |
| Others | 0 | |
| Residential location | ||
| Rural | 1 | |
| Urban | 0 | |
| Level of education | ||
| College or above | 0 | |
| Senior high school | 1 | |
| Junior high school | 1 | |
| Primary school | 1 | |
| None | 1 | |
| Employment status | ||
| Unemployed | 0 | |
| Employed | 1 | |
| Retired and student | 1 | |
| Annual household income quintile a | ||
| 1 | 0 | |
| 2 | 1 | |
| 3 | 1 | |
| 4 | 1 | |
| 5 | 1 | |
| Hospital expenditure quintile b | ||
| 1 | 0 | |
| 2 | 1 | |
| 3 | 1 | |
| 4 | 1 | |
| 5 | 1 | |
| Insurance | ||
| Medical Insurance for Urban Employees (MIUE) | 0 | |
| Medical Insurance for Urban Residents (MIUR) | 1 | |
| New Cooperative Medical Scheme (NCMS) | 1 | |
| Others | 1 | |
| Waiting time | ||
| On/above average | 0 | |
| Below average | 1 | |
| Level of Trust | ||
| Distrust | 0 | |
| Trust | 1 | |
| Service attitudes of health workers | ||
| Poor | 0 | |
| Good | 1 | |
| Ward environment | ||
| Poor | 0 | |
| Good | 1 | |
| Disease | ||
| Cardiovascular | 1 | |
| Respiratory | 1 | |
| Digestive | 1 | |
| Injury and poisoning | 1 | |
| Maternal and obstetrics | 1 | |
| Others | 0 |
a Quintile 1 is the poorest and quintile 5 the wealthiest
b Quintile 1 is the lowest and quintile 5 the highest