Table 1.
Patient characteristics, respiratory status, ICU stay, and hospital mortality. Data are presented as mean (standard deviation), median (quartiles), or number (%).
| Characteristics | All patients (N = 72) |
Oxygen therapy group (N = 22) | MV group (N = 50) |
P-value |
|---|---|---|---|---|
| Sex, Male (%) | 49 (68%) | 16(72%) | 33(66%) | 0.3 |
| Age (years) | 59(13) | 53(12) | 61(13) * | 0.001 |
| Weight (kg) | 95(20) | 101(21) | 90(20) | 0.4 |
| APACHE II score | 10(4) | 9(3) | 11(5.5) | 0.2 |
| Coexisting disorder | ||||
| Chronic cardiac disease (%) | 17(23%) | 4(18%) | 13(26%) | 0.5 |
| Chronic pulmonary disease (%) | 5 (7%) | 0 | 5(10%) | 0.1 |
| Chronic kidney disease (%) | 7 (10%) | 2(9%) | 5(10%) | 0.9 |
| Chronic diabetes (%) | 39 (54%) | 11(50%) | 28(56%) | 0.6 |
| Chronic hypertension (%) | 46 (64%) | 13(59%) | 33(66%) | 0.9 |
| Smoking (%) | 9(16.4%) | 3(14%) | 6(12%) | 0.8 |
| Obesity (%) | 18(25%) | 6(27%) | 12(24%) | 0.6 |
| Smoking (%) | 9(12%) | 3(14%) | 6(12%) | 0.7 |
| Respiratory variables | ||||
| SpO2 on room air (%) | 80(70–85) | 88(85–89) | 75(65–82) * | <0.001 |
| RR on room air (breaths/min) | 39(30–45) | 35(30–40) | 40(33–45) * | 0.025 |
| CT score | 14(10–19) | 10(8–12) | 18(13−20) * | <0.0001 |
| Outcome variable | ||||
| ICU stay (days) | 6(3–8) | 3(2–4) | 7(4–8) * | <0.0001 |
| Mortality (%) | 16(22%) | 0 | 16(32%)* | 0.002 |
APACHE II: Acute Physiology and Chronic Health Evaluation II, CT: Computed tomography, ICU: Intensive care unit. SpO2: peripheral oxygen saturation, RR: respiratory rate, MV: mechanical ventilation * denotes significance compared to the other group, P < 0.05.