Table 2.

Central venous oxygen saturation on admission and 6 h after admission to an intensive care unit

	Central venous oxygen saturation (%)
Subject	On admission	6 h after admission	Difference (%)
1	39.7	52.9	13.2
2	59.1	56.7	-2.4
3	56.1	61.9	5.8
4	57.7	71.4	13.7
5	60.6	67.7	7.1
6	37.8	50.0	12.2
7	58.2	60.7	2.5
8	33.6	51.3	17.7
9	56.0	59.5	3.5
10	65.3	59.8	-5.5
Mean	52.4	59.2	6.8