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Updated: Jul 19, 2026

Field Identification of Matricaria chamomilla using a Portable qPCR System
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Field Identification of Matricaria chamomilla using a Portable qPCR System

Published on: October 10, 2020

Harvesting the best: evidence-based analysis of herbal handbooks for clinicians

Lana Dvorkin1, Julia S Whelan, Samira Timarac

  • 1Massachusetts College of Pharmacy and Health Sciences, 179 Longwood Avenue, Boston, Massachusetts 02115, USA. Lana.dvorkin@mcphs.edu

Journal of the Medical Library Association : JMLA
|November 4, 2006
PubMed
Abstract

No abstract available in PubMed .

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Hazard Ratio

The hazard ratio (HR) is a widely used measure in clinical trials to compare the risk of events, such as death or disease recurrence, between two groups over time. It reflects the ratio of hazard rates—the instantaneous risk of the event occurring—between a treatment group and a control group. This measure provides valuable insights into the relative effectiveness of a treatment by assessing how the risk of an event differs between the two groups.
For example, in a clinical trial evaluating a...