1. Effectiveness of glucosamine for symptoms of knee osteoarthritis: Results from an internet-based randomized double-blind controlled trial 
Timothy McAlindon, MD, MPH, Margaret Formica, MSPH, Michael LaValley, PhD, Melissa Lehmer, MPH, Karim Kabbara, MCIS 
The American Journal of Medicine 
Volume 117, Issue 9, Pages (November 2004)
DOI: /j.amjmed
Copyright © 2004 Elsevier Inc. Terms and Conditions

2. Figure 1
Flow diagram of participant progress through phases of the trial. The asterisk (*) indicates prior to week 6. The dagger (†) indicates inclusion of subjects who participated at least through week 6.
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2004 Elsevier Inc. Terms and Conditions

3. Figure 2
Mean pain scores and 95% confidence intervals at online assessment time points throughout the trial. Higher scores indicate more pain. Pain scores did not differ by treatment group at any online assessment or in intent-to-treat analyses.
The American Journal of Medicine  , DOI: ( /j.amjmed )
Copyright © 2004 Elsevier Inc. Terms and Conditions