Table 1.
Patient characteristics
| Age at start MI‐E (y; median; IQR) | 5.2 (2.7‐12.4) |
|---|---|
| Male gender, n (%) | 22 (59) |
| Diagnosis, n (%) | |
| Spinal muscular atrophy | 23 (62) |
| Type 1 | 11 (48) |
| Type 2 | 12 (52) |
| Duchenne muscular dystrophy | 2 (5) |
| Other neuromuscular disease | 10 (27) |
| Cervical spinal cord injury | 2 (5) |
| Tracheotomy, n (%) | |
| No tracheotomy | 20 (54) |
| Tracheotomy before start MI‐E | 12 (32) |
| Tracheotomy after start MI‐E | 5 (14) |
| Chronic mechanical ventilation, n (%) | |
| No chronic mechanical ventilation | 4 (11) |
| Chronic mechanical ventilation started before MI‐E | 23 (62) |
| Chronic mechanical ventilation started simultaneously | 9 (24) |
| Chronic mechanical ventilation started after MI‐E | 1 (3) |
| Years of MI‐E use, median (IQR) | 2.4 (1.7‐6.3) |
| Number of days of follow up 3 y before start MI‐E, median (IQR) | 1095 (531‐1095) |
| Number of days of follow up 3 y after start MI‐E, median (IQR) | 1095 (523‐1095) |
| Year of MI‐E introduction, n (%) | |
| 2005‐2009 | 4 (11) |
| 2010‐2014 | 12 (32) |
| 2015‐2019 | 21 (57) |
Abbreviations: IQR, interquartile range; MI‐E, mechanical insufflation‐exsufflation.