Table 1.

Comparison of clinical baseline data between the two groups

Index	Observation group (n=57)	Control group (n=58)	X2/t	P
Gender			1.264	0.564
Male	26	29
Female	31	29
Average age (years)	63.29±5.44	64.37±5.42	2.451	0.3245
Average blood loss (ml)	18.38±4.61	17.89±4.56	3.458	0.563
Average course of disease (h)	17.37±2.13	17.41±2.15	2.365	0.754