Table 3.

The initial response of CPAP excluding the patients unable to cooperate, n = 44

Respiratory rate	29.7 ± 7.1	27.7 ± 5.7	−2.0 ± 3.7	0.001
Oxygen supplement, l/min	27.9 ± 13.2	23.3 ± 10.5	−4.5 ± 7.5	<0.001
SpO2, %	90.4 ± 3.5	93.1 ± 2.5	2.8 ± 3.4	<0.001
Blood pressure, systolic mm Hg	135.2 ± 21.5	129.4 ± 15.2	−5.8 ± 20.3	NS
Heart rate	91.2 ± 26.8	98.5 ± 19.4	7.3 ± 25.9	NS

Data are mean ± SD. Vital values collected before starting CPAP and immediately after. The nine patients unable to receive full treatment are excluded. Abbreviations: SpO₂: oxygen saturation measured with pulsoximeter.