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Allocation ratio-The ratio of intended numbers of participants in each of the comparison groups. For two group trials, the allocation ratio is usually 1:1, but unequal allocation (such as 1:2) is sometimes used.
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia, Wikipedia. In risk analysis, any ratio that measures a company's leverage. One example of a gearing ratio is the long-term debt/capitalization ratio, which is calculated by taking the company's long-term debt and dividing it by its long-term debt added to its preferred and common stock. Another example is a simple debt-to-equity ratio, which is calculated by dividing total debt by total equity. Generally, companies with higher leverage as determined by a leverage ratio are thought to be more risky because they have more liabilities and less equity. A leverage ratio is also called a gearing ratio or an equity multiplier.