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Descriptive characteristics of the surveyed ICUs and hospitals in 2009
| Variable | Value |
| Hospital beds | 1 432.4±655.6 |
| ICU beds | 18.2±8.6 |
| Number of doctors | 10.6±5.3 |
| Number of nurses | 36.3±19.0 |
| Number of admissions | 764.5±534.8 |
| APACHE II score | 19.4±3.8 |
| ICU length of stay (d) | 8.3±4.9 |
| ICU mortality (%) | 21.1 (95% CI: 15.6%–26.6%) |
ICU: intensive care unit; APACHE: acute physiology and chronic health evaluation; 95% CI: 95% confidence interval
