Variables of interest | 2018 | 2020 | |||
Mean | SD | Mean | SD | ||
Sex | Male | 73% | / | 73% | / |
Female | 27% | / | 27% | / | |
Mortality | Overall | 2% | / | 3% | / |
Age | Overall | 67.06 | 10.79 | 69.99 | 11.22 |
<59 | 24% | / | 18% | / | |
60 - 79 | 67% | / | 63% | / | |
>80 | 9% | / | 19% | / | |
Operation type | CABG | 63% | / | 45% | / |
Heart valve surgery | 25% | / | 32% | / | |
Combination | 12% | / | 23% | / | |
BMI | Overall | 27.82 | 4.42 | 28.12 | 4.04 |
No resp support | 27.53 | 4.44 | 27.87 | 4.22 | |
HFNC | 28.85 | 4.34 | 28.52 | 3.59 | |
Renal function | Overall | 1.02 | 0.47 | 1.06 | 0.31 |
No resp support | 0.998 | 0.31 | 1.06 | 0.32 | |
HFNC | 1.12 | 0.81 | 1.06 | 0.28 | |
P/F ratio at admission | Overall | 274.7 | 112.8 | 287.4 | 98.04 |
No resp support | 304.88 | 106.9 | 303.9 | 93.98 | |
HFNC | 176.64 | 74.58 | 242.5 | 96.73 | |
P/F ratio post extubation | Overall | 313.7 | 113.3 | 335 | 109.3 |
No resp support | 353.42 | 97.18 | 357.2 | 101.9 | |
HFNC | 181.81 | 44.71 | 268.2 | 105.4 | |
APACHE II score | Admission | 11.36 | 4.77 | 14.27 | 4.19 |
Discharge | 7.49 | 3.94 | 10.55 | 3.64 | |
LOS ICU | Overall | 5.25 | 4.34 | 6.27 | 6.42 |
No resp support | 4.09 | 1.77 | 4.67 | 1.71 | |
HFNC | 7.77 | 4.43 | 8.92 | 5.59 | |
LOS Hospital | Overall | 11.28 | 6.14 | 11.71 | 7.97 |