Table 1 Polysomnography

Central apnea (N)

1

Mean oxygen saturation (%)

95

Obstructive hypopnea (N)

104

Minimum oxygen saturation (%)

90

Respiratory effort-related arousals (N)

131

Morning pH

7.4

Apnea-hypopnea index

12.3

Morning partial pressure of CO₂ (kPa)

6.5

Respiratory disturbance index

27.7

Morning partial pressure of O₂ (kPa)

11

Mean heart rate (beats/min)

70

Morning HCO3^- (kPa)

30