Table 4.

Comparison of clinical symptom relief time between the 2 groups ($\overline{\chi }\pm s$).

Group	Dyspnea relief time (d)	Edema remission time (d)
Regular group (n = 60)	7.06 ± 1.96	7.53 ± 2.34
Observation group (n = 60)	6.85 ± 2.08	7.38 ± 2.27
t	0.569	0.356
P	.570	.722