Randomized, Double-Blinded, Multicenter, Placebo-Controlled Trial of Shenfu Injection for Treatment of Patients with Chronic Heart Failure during the Acute Phase of Symptom Aggravation (Yang and Qi Deficiency Syndrome)

Table 2

Comparison of NYHA classification between SFI and placebo group.

	Excellent	Valid	Invalid	Worsened	Effective rate	Statistics	P value
SFI (n=74)	18	40	16	0	78.38%	4.9344	0.026
Placebo (n=70)	8	35	27	0	61.43%

Effective rate was defined as proportion of all patients who experienced an excellent or valid outcome. Similarly, the ineffective rate was defined as the proportion of all patients who experienced an invalid and worsened outcome.