Investigations prior to CPAP/NIV initiation, n (%)
PG/PSG + nocturnal PtcCO2 recording
PG/PSG
Nocturnal SpO2 + PtcCO2 recording
CPAP/NIV initiation criteria, n (%)
AHI
AHI + nocturnal SpO2 and PtcCO2
Nocturnal SpO2 and PtcCO2
AHI + nocturnal PtcCO2
AHI + nocturnal SpO2
PtcCO2 only
SpO2 only
|
38 (45%)
44 (52%)
2 (2%)
64 (76%)
18 (21%)
2 (2%)
0
0
0
0
|
71 (50%)
65 (46%)
6 (4%)
90 (63%)
36 (25%)
8 (6%)
2 (1%)
3 (2%)
2 (1%)
1 (1%)
|
109 (48%)
109 (48%)
8 (4%)
154 (68%)
54 (24%)
10 (4%)
2 (1%)
3 (1%)
2 (1%)
1 (0%)
|