Table 5.

A sub-group correlation analysis focusing on those 16 patients who were admitted to the ICU for 7 or more days.

ICU Day	1	2	3	4	5	6	7
R	0.234	−0.022	0.202	0.239	−0.015	0.434	0.620*

R, Spearman's correlation coefficient;

^*p < 0.05.