Correction: Single-Drug Therapy for Hypertension in Men

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Abstract
During further analysis of the data used in our study of single-drug therapy for hypertension in men (April 1, 1993, issue),1 we discovered two errors in the computer program; these errors affected the results that we reported in Figures 2 and 3 of the article. One error permitted a small group of patients who had not completed one year of maintenance therapy to be excluded from the analysis, even though we had planned an intention-to-treat analysis. The second error was due to an unrecognized deletion of an entire line of code that provided the definition of treatment success. This error also led to an underestimation of the percentage of successes. Correction of the error did not result in an even increase in this percentage across treatment groups, so that there were some changes in the order of the drugs.

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