Number of exposed subjects with viral hepatitis B in the 30-day windows and adjusted odds ratios between hospitalisations with liver injury and Chinese herbal products with <i>Radix bupleuri</i> by case-control and case-crossover designs, 1997–2004.

no., number; OR, odds ratio; CI, confidence interval. aAdjusted for the frequency of the time-variant hepatotoxic drugs during every exposure window and the scores of the Charlson co-morbidity index score for one year prior to admission. bAdjusted for the frequency of the time-variant hepatotoxic drugs during every exposure window. cCHPs with Radix bupleuri prescribed by cases and controls or in recent and reference windows: Jia-Wei-Xia-Yao-San, Long-Dan-Xie-Gan-Tang, Xiao-Chai-Hu-Tang (Sho-Saiko-To, TJ-9), Chai-Hu-Qing-Gan-Tang, Chai-Hu-Su-Gan-Tang, Jing-Fang-Bai-Du-San, Hsieh-Fu-Chu-Yu-Tang, Chai-Ge-Jie-Ji-Tang, Bu-Zhong-Yi-Qi-Tang, Chai-Hu-Gei-Zhi-Tang, Xia-Yao-San, Zi-Shen-Tong-Er-Tang, Pu-Ji-Xiao-Du-Yin, Qin-Jiao-Bie-Jia-San, Yi- Gan-San, Si-Ni-San, Da-Chai-Hu-Tang, Chai-Hu-Jia-Long-Gu-mu-Li-Tang, Chai-Hu-Xian-Xiong-Tang, Qing-Kong-Gao, San-Zhong-Kui-Jian-Tang, Jing-Jie-Lian-Qiao-Tang, Wan-Dai-Tang, Shen-Mi-Tang, Ren-Shen-Bai-Du-San, Sheng-Yang-Yi-Wei-Tang, Fu-Yuan-Huo-Xue-Tang, Dun-Sou-Tang, and Chai-Hu. dThe cut-off points for categories were the medians of all cumulative doses. eCumulative doses cannot be classified due to different CHPs.