Table 1.
General characteristics of the patients in both groups
| Hypercapnic group | Control group | p-value | |
|---|---|---|---|
| (N = 26) | (N = 15) | ||
| Characteristic | |||
| Age (year) | 48 ± 18 | 44 ± 14 | 0.364 |
| Gender M/F | 15 (58)/11 (42) | 5 (33)/10 (67) | 0.239 |
| Weight (kg) | 56 [50;68] | 55 [46;64] | 0.600 |
| Height (cm) | 164 [158;170] | 162 [154;168] | 0.655 |
| APACHE II score * | 22 [20;24] | 18 [16;19] | 0.571 |
| SAPS 3 score** | 51 [33;53] | 33 [26;43] | 0.825 |
| SOFA 1st day | 5 [3;7] | 5 [3;9] | 0.999 |
| Comorbidities | 0.455 | ||
| Hypertension | 5 (19) | 4 (27) | |
| Diabetes | 0 (0) | 1 (7) | |
| COPD | 0 (0) | 0 (0) | |
| Chronic renal failure | 0 (0) | 0 (0) | |
| Neoplasm | 0 (0) | 1 (7) | |
| Respiratory failure etiology | |||
| Pneumonia | 22 (84) | 13 (87) | 1.000 |
| Asthma | 2 (8) | 0 (0) | 0.524 |
| Septic syndromes | 2 (8) | 2 (13) | 0.615 |
| ICU support | |||
| Vasopressors | 13 (50) | 2 (13) | 0.044 |
| Inotropics | 11 (42) | 6 (40) | 0.854 |
| Outcomes | |||
| ICU LOS (days) | 11 [6;17] | 8 [7;10] | 0.118 |
| Mortality | 7 (27) | 2 (13) | 0.445 |
M/F - male/female; APACHE - acute physiology and chronic health disease classification system; SAPS - simplified acute physiological score; SOFA - sequential organ failure assessment; COPD - chronic obstructive pulmonary disease; ICU - intensive care unit; LOS - length of stay.
*
APACHE II score was retrieved from eleven patients;
**
SAPS 3 was retrieved from thirty patients. The results expressed in mean and standard deviation values.