Block Matching Pyramid Algorithm-Based Analysis on Efficacy of Shexiang Baoxin Pills Guided by Echocardiogram (ECG) on Patients with Angina Pectoris in Coronary Heart Disease

Table 2

Comparison of efficacy between angina pectoris and echocardiogram.

Grade	Angina pectoris efficacy				Echocardiogram efficacy
	Ctrl (n = 103)	Observation group (n = 103)	χ^2	value	Ctrl (n = 103)	Observation group (n = 103)	χ^2	value
Obviously effective	41 (39.8)	45 (43.7)	—	—	34 (33.0)	41 (39.8)	—	—
Effective	52 (50.5)	54 (52.4)	—	—	52 (50.5)	55 (53.4)	—	—
Ineffective	10 (9.7)	4 (3.9)	—	—	17 (16.5)	7 (6.8)	—	—
Aggravated	0 (0.0)	0 (0.0)	—	—	0 (0.0)	0 (0.0)	—	—
Effective rate (%)	90.3	96.1	8.325	0.027	83.5	93.2	11.231	0.004