Table 2.
Baseline characteristics of patients treated with LT-NIV or LT-HFNC, respectively. Results expressed as means (standard deviation) where nothing else is stated.
| LT-NIV (N = 16) | LT-HFNC (N = 17) | p-Value | |
|---|---|---|---|
| Sex, (%female) | 56.2 | 65.0 | 0.72 |
| Age (years) | 68.3 (7.5) | 66.8 (7.3) | 0.55 |
| MRC-score | 4.8 (0.2) | 4.5 (0.5) | 0.92 |
| FEV1% | 30.5 (8.8) | 27.1 (8.2) | 0.26 |
| BMI | 28.9 (6.5) | 28.6 (5.5) | 0.68 |
|
Smoking status
Present/former/never (%) |
25/75/0 | 35/65/0 | 0.23 |
| PaO2 at initiation (kPa) | 7.2 (0.9) | 7.6 (2.1) | 0.24 |
| PaCO2 at initiation(kPa) | 8.8 (0.9) | 7.1 (1.3) | 0.002 |
| St. Bicarbonate at initiation (mmol/L) | 34.4 (5.4) | 30.7 (4.0) | 0.10 |
| Number of hospitalizations twelve months before initiation of respiratory support | 2.9 (0.5) | 2.5 (0.4) | 0.13 |
| Number of hospitalizations twelve months after initiation of respiratory support | 1.6 (0.4) | 1.5 (0.4) | 0.84 |
MRC = Medical Research Council; FEV1%: Forced expiratory volume in the first second in present of expected value (Global Lung Function Initiative); BMI = Body mass index; kPa = kilopascal; HCO3 = Standard Bicarbonate.