TABLE 3.

Most commonly used pairs of CHM products for patients with aplastic anemia in Taiwan.

CHM products (LHS, X)	Chinese name	Frequency of prescriptions of X product	—	CHM products (RHS, Y)	Chinese name	Frequency of prescriptions of Y product	Frequency of prescriptions of X and Y products	Support (X) (%)	Confidence (X →Y) (%)	Lift
Ban-Zhi-Lian (BZL; Scutellaria barbata D.Don)	半枝蓮	6,042	→	Ban-Zhi-Lian (BZL; Scutellaria barbata D.Don)	白花蛇舌草	6,767	3,661	3.01	60.59	10.90
Dang-Gui (DG; Angelica sinensis (Oliv.) Diels)	當歸	3,712	→	Huang-Qi (HQi; Astragalus membranaceus (Fisch.) Bunge)	黃耆	9,058	1778	1.46	47.90	6.44
Xian-He-Cao (XHC; Agrimonia pilosa f. borealis (Kitag.) Chu)	仙鶴草	4,036	→	Gui-Pi-Tang (GPT)	歸脾湯	8,588	1,345	1.10	33.33	4.73
Huang-Qi (HQi; Astragalus membranaceus (Fisch.) Bunge)	黃耆	9,058	→	Dan-Shen (DanS; Salvia miltiorrhiza var. charbonnelii (H.Lév.) C.Y.Wu)	丹參	9,867	1,241	1.02	13.70	1.69
Bai-Hua-She-She-Cao (BHSSC; Scutellaria barbata D.Don)	白花蛇舌草	6,767	→	Dan-Shen (DanS; Salvia miltiorrhiza var. charbonnelii (H.Lév.) C.Y.Wu)	丹參	9,867	1,207	0.99	17.84	2.20

CHM, Chinese herbal medicine; LHS, left-hand-side; RHS, right-hand-side.

Total prescriptions = 121770.

Support (X) (%) = Frequency of prescriptions of X and Y products/total prescriptions x 100%.

Confidence (X →Y) (%) = Frequency of prescriptions of X and Y products/Frequency of prescriptions of X product x 100%.

Lift = Confidence (X →Y) (%)/P (Y) (%).

P (Y) (%) = Frequency of prescriptions of Y product/total prescriptions x 100%.

Gui-Pi-Tang (GPT) was the herbal formula and was composed of 12 single herbs (Table 2).

Pin-yin and botanical plant names for Chinese herbs were obtained from the websites (http://www.americandragon.com/index.htm; http://old.tcmwiki.com/; http://www.shen-nong.com/eng/front/index.html; http://www.ipni.org/; http://www.theplantlist.org/; http://www.worldfloraonline.org/).