Descriptive statistics of input, outcome, and explanatory variables
| Characteristics/description | Mean | Median | SD | Minimum | Maximum | Source |
| Input variable | ||||||
| Health expenditure per capita, PPP | 1133.71 | 663.94 | 1157.72 | 88.03 | 4405.13 | WDI |
| Outcome variables | ||||||
| Healthy life expectancy at birth (years) | 64.29 | 65.2 | 5.1 | 53.2 | 75.9 | WHO |
| Infant mortality (per 1000 live births) | 19.9 | 13.9 | 15.8 | 2.0 | 65.7 | WDI |
| Explanatory variables for Tobit model | ||||||
| Physicians (per 1000 people) | 1.6 | 1.6 | 1.1 | 0.1 | 4.8 | WDI |
| Hospital beds (per 1000 people) | 2.9 | 2.1 | 2.7 | 0.1 | 13.7 | WDI |
| Smoking prevalence, males (% of adults) | 42.2 | 42.2 | 10.5 | 18.9 | 71.8 | WDI |
| Primary completion rate, total (% of relevant age group) | 96.5 | 97.9 | 11.4 | 66.7 | 116.5 | WDI |
PPP, purchasing power parity; SD, standard deviation; WDI, World Development Indicators-2015.