Table 2 Baseline ventilatory characteristics of HMV patients in Chile (n = 1105)

O₂ supplementation need (LTOT)

n (%)

688 (62.4)

Interface

Non-invasive

n (%)

1047 (94.8)

Invasive (tracheostomy)

N (%)

58 (5.2)

Time in home mechanical ventilation (months)

Median [IQR]

21.6 (12.2–49.5)

Ventilatory modes (n = 706 patients)

Spontaneous/timed (S/T)

n (%)

613 (86.8)

Spontaneous (S)

n (%)

34 (4.8)

Hybrid (AVAPS or iVAPS)

n (%)

46 (6.5)

Other modes

n (%)

13 (1.8)

Compliance (hours/day)

Median [IQR]

7.3 (5.8–8.8)

Ventilator settings (n = 706 patients)

IPAP (cmH₂O)

Median [IQR]

16 (14–18)

EPAP (cmH₂O)

Median [IQR]

6 (6–8)

Maximum IPAP (cmH₂O) (only hybrid mode)

Median [IQR]

18 (16–22)

Backup respiratory rate

Median [IQR]

15 (14–16)