Prescription Patterns of Chinese Herbal Products for Osteoporosis in Taiwan: A Population-Based Study

Table 4

Coprescriptions (one to one association) of single herbs and herbal formulae for osteoporosis population.

Herbal associations	Support; (%)	Confidence (%)	Transaction count	Association rule
Single herb to single herb	5.87	31.95	491	Du Zhong (Cortex Eucommiae) ⇒ Xu Duan (Radix Dipsaci)
	3.94	21.47	333	Du Zhong (Cortex Eucommiae) ⇒ Niu Xi (Radix Achyranthis Bidentatae)
	3.90	21.21	326	Du Zhong (Cortex Eucommiae) ⇒ Dan Shen (Radix Salvia Miltiorrhizae)
	3.62	26.91	303	Xu Duan (Radix Dipsaci) ⇒ Gu Sui Bu (Rhizoma Drynariae)
	3.14	27.42	263	Dan Shen (Radix Salvia Miltiorrhizae) ⇒ Wei Ling Xian (Radix Clematidis)
Herbal formula to herbal formula	4.42	20.65	370	Du-huo-ji-sheng-tang ⇒ Shu-jing-huo-xie-tang
	2.86	16.41	239	Zuo-Gui-Wan ⇒ Si-Jun-Zi-Tang
	2.64	12.33	221	Du-huo-ji-sheng-tang ⇒ Gui-Lu-Er-Xian-Jiao
	2.56	14.70	214	Zuo-Gui-Wan ⇒ Jia-Wei-Xiao-Yao-San
	2.52	39.66	211	zhi-bo-di-huang-wan ⇒ Jia-Wei-Xiao-Yao-San
Herbal formula to single herb	4.77	22.27	399	Du-huo-ji-sheng-tang ⇒ Du Zhong (Cortex Eucommiae)
	4.11	19.20	344	Du-huo-ji-sheng-tang ⇒ Xu Duan (Radix Dipsaci)
	3.69	17.24	309	Du-huo-ji-sheng-tang ⇒ Niu Xi (Radix Achyranthis Bidentatae)
	3.50	20.12	293	Zuo-Gui-Wan ⇒ Yan hu suo (Rhizoma Corydalis)
	3.06	17.58	256	Zuo-Gui-Wan ⇒ Xu Duan (Radix Dipsaci)