Liver patients combined

(n = 22)

PBC

(n = 13)

Non-PBC liver

(n = 9)

Control subjects

(n = 21)

p†

PaO₂, mm Hg, upright*

84.3 ± 16

90.1 ± 12.4

77.6 ± 17.1

92.6 ± 6.7

0.02

PaO₂, mm Hg, supine

77.4 ± 10.1

83 ± 9.4

70.5 ± 10.5

---

0.05

PaCO₂, mm Hg, upright

33.2 ± 2.9

32.8 ± 3.1

33.9 ± 2.3

---

NS

pH, upright

7.43 ± 0.03

7.43 ± 0.03

7.43 ± 0.03

---

NS