Table 2 Physiologic variables before, during and after prone positioning (n = 78)

14 (12–15)

14 (12–15)

14 (12–15)

0.679

70 (60–90)

60 (50–70)^a

60 (45–80)^a

 < 0.001

6.8 (6.1–7.6)

6.7 (6.2–7.3)

6.8 (6.2–7.4)

0.619

11 (10–14)

11 (10–14)

11 (9–14)

0.147

25 (22–28)

24 (23–27)

24 (23–28)

0.324

20 (18–22)

22 (20–24)^a

22 (20–24)^a

 < 0.001

9.4 (7.7–11.0)

9.6 (8.3–11.2)

9.9 (8.2–11.2)

0.052

12.6 (9.8–15.2)

12.6 (9.5–15.7)

12.2 (10.3–14.9)

0.881

53 (45–60)

53 (43–59)

52 (46–60)

0.302

43 (31–50)

42 (35–48)

41 (34–48)

0.943

98 (72–121)

158 (112–220)^a

128 (87–174)^a,b

 < 0.001

2.0 (1.6–2.4)

2.0 (1.5–2.5)

1.9 (1.6–2.5)

0.881