Table 6.

Classification of interventions based on network meta-analysis on alleviating global symptoms at 4-week follow-up: domperidone as comparator

Classification of intervention	CHM formula	Risk difference (95% CI)	Surface under the cumulative ranking curve	Certainty of evidence+
Moderate beneficial effect#	Modified Zhi Zhu Decoction	0.28 (− 0.03, 0.75)	0.85	Low
Small beneficial effect†	Xiao Pi Tong Jiang Decoction	0.15 (− 0.11, 0.57)	0.64	Low
	Xiao Pi Kuan Wei Decoction	0.13 (− 0.11, 0.50)	0.61	Low
	Jian Pi Yi Qi Decoction	0.13 (− 0.11, 0.49)	0.60	Low
	Shu Gan Jian Pi He Wei Decoction	0.12 (− 0.11, 0.49)	0.59	Low
	Xiang Su Li Qi Decoction	0.13 (− 0.11, 0.52)	0.59	Low
	He Wei Decoction	0.10 (− 0.07, 0.34)	0.57	Very low
	Modified He Gan Decoction	0.11 (− 0.12, 0.46)	0.54	Low
	Liu Wei An Xiao Capsule	0.09 (− 0.07, 0.34)	0.53	Very low
	Xiao Pi Decoction	0.09 (− 0.13, 0.44)	0.49	Low
Trivial to no beneficial effect‡	He Wei Xiao Pi Decoction	0.07 (− 0.14, 0.38)	0.42	Very low
	Tiao He Gan Pi Xing Qi Decoction	0.06 (− 0.14, 0.38)	0.41	Low
	Fu An Decoction	0.06 (− 0.14, 0.38)	0.40	Low
	Cai Zhu Jie Yu Decoction	0.06 (− 0.15, 0.36)	0.38	Low
	Zhi Zhu Kuan Zhong Capsule	− 0.03 (− 0.19, 0.22)	0.16	Very low

CHM Chinese herbal medicine, CI Confidence interval

^#Moderate beneficial effect: 0.31 > risk difference ≥ 0.20

^†Small beneficial effect: 0.20 > risk difference ≥ 0.08

^‡Trivial to no beneficial effect: risk difference < 0.08

⁺Quality of evidence ratings for comparisons in network meta-analysis on alleviating global symptoms at 4-week follow-up (domperidone as the comparator). Details refer to Additional file 1: Appendix 4