Treatment of the Common Cold with Unrefined Echinacea
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Figure 1. Randomization and patient flow.
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Figure 2. The dotted line represents the echinacea group; the solid line represents the placebo group. Illness duration.
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Figure 3. Dotted lines represent the echinacea group; solid lines represent the placebo group. Error bars represent 95% CIs.
Although 95% CIs indicate the uncertainty of the severity of symptoms, they should not be used to compare symptom severity
on any particular day. Mean severity of global and general symptoms.
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Figure 4. Dotted lines represent the echinacea group; solid lines represent the placebo group. Error bars represent 95% CIs.
Although 95% CIs indicate the uncertainty of the severity of symptoms, they should not be used to compare symptom severity
on any particular day. Mean severity of specific cold symptoms.
- Copyright ©2004 by the American College of Physicians
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Ann Intern Med
December 17, 2002
vol. 137
no. 12
939-946