Figure 1. Distribution of the reason for exclusion of stable angina articles.

Figure 1. Distribution of the reason for exclusion of stable angina articles

The majority of reviewed articles were excluded because they did not report trials of medical treatments for stable angina. Most anti-anginal trials compared one drug to placebo, or compared different drugs of the same class (e.g., diltiazem with nifedipine). Ultimately, only 3 percent of studies were included in the analysis.

From: 3, Results

Cover of An Evaluation of Beta-Blockers, Calcium Antagonists, Nitrates, and Alternative Therapies for Stable Angina
An Evaluation of Beta-Blockers, Calcium Antagonists, Nitrates, and Alternative Therapies for Stable Angina.
Evidence Reports/Technology Assessments, No. 10.
Heidenreich PA, McDonald KM, Hastie T, et al.
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