Table 7 Cox proportional regression analysis evaluating ROX > 7.00 and ROX-HR > 8.00 for the prediction of HFNC failure in patients initiated on HFNC after a planned extubation
Univariate analysis | p value | Multivariate analysis | p value | ||
|---|---|---|---|---|---|
ROX > 7.00 | 2 h | 0.519 (0.184–1.459) | 0.213 | 0.405 (0.141–1.164) | 0.093 |
6 h | 0.348 (0.106–1.142) | 0.082 | 0.356 (0.108–1.171) | 0.089 | |
10 h | 0.251 (0.076–0.826) | 0.023 | 0.287 (0.083–0.998) | 0.050 | |
18 h | 0.473 (0.133–1.680) | 0.247 | 0.431 (0.121–1.539) | 0.195 | |
24 h | 0.169 (0.035–0.814) | 0.027 | 0.173 (0.036–0.833) | 0.029 | |
ROX-HR > 8.00 | 2 h | 0.459 (0.163–1.292) | 0.140 | 0.483 (0.171–1.364) | 0.169 |
6 h | 0.266 (0.078–0.913) | 0.035 | 0.305 (0.086–1.079) | 0.065 | |
10 h | 0.176 (0.051–0.604) | 0.006 | 0.194 (0.053–0.709) | 0.013 | |
18 h | 0.578 (0.149–2.238) | 0.427 | 0.426 (0.106–1.719) | 0.231 | |
24 h | 0.296 (0.074–1.186) | 0.086 | 0.303 (0075–1.215) | 0.092 |