Table 3.

Comparison of the nutritional indexes before surgery and at discharge of patients undergoing mitral valve clamp surgery

Variables	Before the intervention	At discharge	Z	P
Albumin (g/L)	39.2 ± 5.2	33.5 ± 2.8	−2.547*	0.011
Total protein (g/L)	69.2 ± 6.4	63.5 ± 2.3	−2.448*	0.014

* Wilcoxon signed rank test