Windows used in the study
| Sample | ||
| Used for training | Used to test | |
| Total windows N | 21 055 | 2223 |
| No cannula or Respeck rate | 603 (3) | 29 (1) |
| No Respeck rate | 618 (3) | 67 (3) |
| No cannula rate | 4844 (23) | 363 (16) |
| Discarded due to undefined feature | 575 (3) | 94 (4) |
| Used for analysis | 14 415 (68) | 1670 (75) |
Data are presented as n (%) unless otherwise stated.