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The Breslow-Gehan-Wilcoxon test is a statistical method used to compare survival distributions between two or more groups based on Kaplan-Meier survival curves. It focuses on the rank-order of event times, giving more weight to events that occur earlier in the observation period, thus being sensitive to differences in survival times. This test is particularly useful in clinical trials and epidemiological studies where the time until an event occurs, such as death or disease progression, is of interest. By evaluating the differences in survival distributions, the test helps determine if treatments or interventions have a significant impact on patient outcomes.

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AnswerBot

1mo ago

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