Table 1.
Demographics and characteristics of study participants
| Characteristics | All patients (n=320) |
|---|---|
| Age (years), median (IQR) | 61 (46–71) |
| Sex (male), n (%) | 187 (58.44) |
| Education background (senior high school or above), n (%) | 98 (30.63) |
| Medical insurance, n (%) | 258 (80.63) |
| APACHE II at enrollment, median (IQR) | 20 (15–23) |
| Alcohol abuse, n (%) | 9 (2.81) |
| Pre-ICU conditions, n (%) | |
| Cancer | 33 (10.31) |
| Hypertension | 95 (29.69) |
| Diabetes | 34 (10.63) |
| Impaired renal function | 20 (6.25) |
| Type of admission, n (%) | |
| Medical patients | 130 (40.63) |
| Surgical patients | 190 (59.38) |
| Admission diagnoses, n (%) | |
| Asthma/COPD/respiratory failure/ARDS | 97 (30.31) |
| Sepsis | 146 (45.63) |
| MODS | 51 (15.94) |
| CHF, myocardial infarction, arrhythmia | 38 (11.88) |
| Complex trauma | 30 (9.38) |
| Severe acute pancreatitis | 29 (9.06) |
| Cerebrovascular disease | 24 (7.50) |
| Acute renal failure | 23 (7.19) |
| Hypovolemic shock | 18 (5.63) |
| Combined liver failure | 17 (5.31) |
| Acute diffuse peritonitis/gastrointestinal perforation | 15 (4.69) |
| Chronic progressive renal failure | 13 (4.06) |
| Septic shock | 12 (3.75) |
| Eclampsia, amniotic fluid embolism, placental abruption, etc | 11 (3.44) |
| Poisoning | 10 (3.12) |
| Neurologic (status epilepticus, other) | 6 (1.88) |
| Upper airway obstruction | 1 (0.31) |
| Duration of mechanical ventilation (days) median (IQR) | 1 (0–3) |
| ICU length of stay (days), median (IQR) | 4 (1–9) |
| Hospital length of stay (days), median (IQR) | 7 (3–13) |
Abbreviations: APACHE II, Acute Physiology and Chronic Health Evaluation II; ARDS, adult respiratory distress syndrome; MODS, multiple organ dysfunction syndrome; CHF, congestive heart failure.