Comparison 1.

Herbal medicines versus supportive therapy

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Number of patients without  symptom improvement	4		Risk Ratio (M-H, Fixed, 95% CI)	Subtotals only
1.1 Qingxinkangyan Yin  Decoction versus support  therapy	1	111	Risk Ratio (M-H, Fixed, 95% CI)	0.34 [0.12, 1.02]
1.2 Xinshu Capsule versus  supportive therapy	1	120	Risk Ratio (M-H, Fixed, 95% CI)	0.14 [0.04, 0.45]
1.3 Astragaloside injection  versus support therap	1	164	Risk Ratio (M-H, Fixed, 95% CI)	0.77 [0.37, 1.59]
1.4 Shenmai injection versus  support therapy	1	127	Risk Ratio (M-H, Fixed, 95% CI)	0.32 [0.14, 0.75]
2 Abnormal ST-T changes	1		Risk Ratio (M-H, Fixed, 95% CI)	Subtotals only
2.1 Shenmai injection versus  support therapy	1	57	Risk Ratio (M-H, Fixed, 95% CI)	1.18 [0.58, 2.40]
3 Number of patients died of  cardiac failure	1	164	Risk Ratio (M-H, Fixed, 95% CI)	1.22 [0.34, 4.38]
3.1 Astragaloside injection  versus support therapy	1	164	Risk Ratio (M-H, Fixed, 95% CI)	1.22 [0.34, 4.38]
4 Number of patients converting  to persisting myocarditis	1	164	Risk Ratio (M-H, Fixed, 95% CI)	0.65 [0.11, 3.79]
4.1 Astragaloside injection  versus support therapy	1	164	Risk Ratio (M-H, Fixed, 95% CI)	0.65 [0.11, 3.79]
5 Number of patients with  premature beat	1	120	Odds Ratio (M-H, Fixed, 95% CI)	0.21 [0.06, 0.79]
5.1 Xinshu Capsule versus  supportive therapy	1	120	Odds Ratio (M-H, Fixed, 95% CI)	0.21 [0.06, 0.79]