Table 2.
Comparison of baseline characteristics of patients receiving noninvasive ventilation, according to various etiology
| AHRF with ARDS (n=27) | AHRF without ARDS (n=23) | Total (n=50) | P | |
|---|---|---|---|---|
| Age (years) | 52.96±16.72 | 50.65±18.81 | 51.90±17.56 | 0.64 (NS) |
| APACHE II score | 13.40±6.36 | 12.04±5.49 | 12.78±5.96 | 0.42 (NS) |
| HR (beats/min) | 124.48±14.42 | 122.26±15.48 | 123.46±14.80 | 0.60 (NS) |
| RR (breaths/min) | 37.44±3.88 | 37.08±4.06 | 37.28±3.93 | 0.75 (NS) |
| pH | 7.34±0.04 | 7.36±0.03 | 7.35±0.03 | 0.078 (NS) |
| PaO2/FiO2 | 143.33±94.40 | 196.82±106.64 | 167.94±102.76 | 0.06 (NS) |
| PaCO2 (mmHg) | 32.96±7.02 | 33.91±6.37 | 33.40±6.68 | 0.62 (NS) |
AHRF: Acute hypoxic respiratory failure, ARDS: Acute respiratory distress syndrome, APACHE: Acute Physiology and Chronic Health Evaluation, HR: Heart rate, RR: Respiratory rate, NS: Not significant, PaO2/FiO2: Arterial oxygen pressure/fraction of inspired oxygen, PaCO2: Arterial carbon dioxide pressure