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Accelerated failure time model negative risk ratios

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Accelerated failure time model negative risk ratios

I am running survival analyses using proc lifereg for my multivariate analysis (adjusting for age and such) and have negative values for my risk ratios. What exactly does a negative ratio indicate?

I am having difficulty finding information about the accelerated failure time model as most people use the cox PH model. Feedback would be really helpful!

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