Table 5.

Potentially effective herbs for specific symptoms based on association rules.

Consequent	Antecedent	Support %	Confidence %	Lift*	No of subjects with antecedent symptom receiving consequent herb
Da huang	RBD	6.69	61.02	2.28	72
Dang shen/ren shen/hong shen	Motor fluctuations	3.63	81.25	1.49	52
Huang qi	Motor fluctuations	3.63	75	1.40	48
Dang gui	Dyskinesia	3.29	63.79	1.34	37
Dang shen/ren shen/hong shen	Dyskinesia	3.29	72.41	1.32	42
Dang shen/ren shen/hong shen	RBD	6.69	70.34	1.29	83
Dang gui	Motor fluctuations	3.63	60.94	1.28	39
Huang qi	RBD	6.69	68.64	1.28	81
Dang gui	RBD	6.69	60.17	1.26	71

^*A higher lift represents a higher likelihood of an increase in the consequent given a particular antecedent. RBD, rapid eye movement sleep behavior disorder; Association rules higher than 1.2 were presented.