Table 2.

Study I*: blood gas analyses and vital parameters after exercise (N = 38)

Study I*	Period	With pNIV	Without pNIV	Treatment effect (95% CI)	P
pH	1	7.42 ± 0.04	7.4 ± 0.05	− 0.005 [− 0.01; 0.004]	0.26
	2	7.39 ± 0.05	7.42 ± 0.04
PaCO2 [mmHg]	1	42.7 ± 9.1	41.4 ± 6.1	0.46 [− 0.8; 1.7]	0.48
	2	42.3 ± 5.9	43.2 ± 8.4
PaO2 [mmHg]	1	66.7 ± 7.4	61.1 ± 8.9	0.03 [− 1.9; 2]	0.98
	2	58.5 ± 8.4	63.4 ± 8.3
HCO3− [mmol/l]	1	26.4 ± 2.4	24.8 ± 2	− 0.2 [− 0.7; 0.3]	0.45
	2	24.7 ± 2.7	26.6 ± 2.3
SaO2 [%]	1	93.6 ± 2	90.8 ± 5.3	− 0.2 [− 1.4; 0.8]	0.63
	2	89.6 ± 5	92.9 ± 2.6
RRsys [mmHg]	1	151.6 ± 28.1	147.8 ± 20.6	1.9 [− 5; 8.7]	0.659
	2	152.2 ± 15.5	150.2 ± 21.6
RRdia [mmHg]	1	92.5 ± 16.6	91.2 ± 12.8	− 0.8 [− 6.4; 4.7]	0.77
	2	94.4 ± 19.5	92.9 ± 11.5
Heart rate [/min]	1	85.5 ± 23.2	89.1 ± 14.4	0.4 [− 6.4; 7.2]	0.90
	2	90.6 ± 12.9	88 ± 14.5

PaO₂ partial pressure of arterialized oxygen, PaCO₂ partial pressure of arterialized carbon dioxide, HCO₃⁻ arterialized standard hydrogen carbonate, S_aO₂ Oxygen saturation, RRsys systolic blood pressure, RRdia diastolic blood pressure

*Patients without long-term NIV