A prognostic variable, also known as a prognostic factor, is a characteristic or measurement that can help predict the likely outcome or progression of a disease or condition in an individual over time. These variables can provide valuable information about the natural course of a disease, including the likelihood of recovery, recurrence, or survival. Prognostic variables can be clinical (e.g., age, sex, stage of disease), pathological (e.g., tumor size, grade), or even molecular (e.g.
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