Survival measures are often expressed as the ______ of patients alive at some point after diagnosis.

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Multiple Choice

Survival measures are often expressed as the ______ of patients alive at some point after diagnosis.

Survival measures are most clearly described as the proportion of the original group still alive at a defined time after diagnosis. This makes the metric easy to interpret and compare: if 100 patients are diagnosed and 60 are alive at 5 years, the survival proportion is 60%. It’s a straightforward fraction—alive at time t divided by the number diagnosed. Hazard refers to the instantaneous risk of death at a moment in time and isn’t a fixed fraction of the cohort. Incidence counts new diagnoses, not survival of existing patients. Probability is a broad term; survival measures are specifically expressed as a proportion (a share) of the cohort alive at a specified time, often called the survival proportion or survival rate.

Survival measures are most clearly described as the proportion of the original group still alive at a defined time after diagnosis. This makes the metric easy to interpret and compare: if 100 patients are diagnosed and 60 are alive at 5 years, the survival proportion is 60%. It’s a straightforward fraction—alive at time t divided by the number diagnosed.

Hazard refers to the instantaneous risk of death at a moment in time and isn’t a fixed fraction of the cohort. Incidence counts new diagnoses, not survival of existing patients. Probability is a broad term; survival measures are specifically expressed as a proportion (a share) of the cohort alive at a specified time, often called the survival proportion or survival rate.

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