Table 2.

Summary of studies from developing countries.

	Louis et al. (6)	Nathan et al. (9)	Bertrand et al. (10)
Number of patients	55	70	35
Invasive/NIV	39/16	10/60	26/9
Underlying disease
NMD	33 (60%)	7 (10%)	12 (34%)
Primary respiratory diseases	–	40 (57%)	17 (48%)
CCHS	5 (9%)	–	2 (6%)
Age at initiation of HMV (median in years)	3.5	0.9	1
Duration of HMV (median in months)	42.5	12	21
Overnight ventilation	18 (33%)*	38 (54%)	N/A
Ventilation 24 h a day	26 (47%)	32 (46%)	N/A
Died	21 (38%)	10 (14%)	6 (17%)

^*Information lacking for 11 patients.

NIV, non-invasive ventilation; NMD, neuromuscular disease; CCHS, congenital central hypoventilation syndrome; HMV, mechanical ventilation at home.