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. Author manuscript; available in PMC: 2010 Sep 14.
Published in final edited form as: Ann Intern Med. 2009 Aug 18;151(4):229–W51. doi: 10.7326/0003-4819-151-4-200908180-00005

Appendix Table 1.

Study Adherence

Variable TwHF Group
(n = 60)		 Sulfasalazine
Group
(n = 61)		 P Value
Mean days of study (SE) 129.1 ± 7.5 98.2 ± 8.8 0.008
Mean pills taken (SE), %* 92.5 ± 1.7 87.9 ± 2.3 0.120

TwHF = Tripterygium wilfordii Hook F.

*

Calculated from the number of pills actually taken (per diary assessment) relative to the number of pills the patients were supposed to take while in the study. By using a daily pill diary and blister card checks, the percentage of pills taken was corrected for time in the study. Although the time in the study was longer in patients receiving TwHF, adherence to medication intake in both groups was good and not significantly different.