Table 3.

Venous admixture (% of cardiac output)

Subject	0.13	0.21	1.0
1	28.9	4.4	0.6
2	18.4	1.0	0.0
3	9.9	3.3	1.1
4	26.7	4.9	0.8
5	24.2	3.9	1.0
6	26.6	3.5	0.0
7	25.0	3.7	0.2
Mean	22.8	3.5	0.5
s.d.	6.6	1.2	0.5
s.e.m.	2.5	0.5	0.2

P≤ 0.001 for all pairwise comparisons between the three mean values.