Which analytic used in healthcare is calculated as a proportion of new cases compared to person-time units?

Cumulative incidence represents the proportion of a population that develops a disease over a specified time frame but does not account for the person-time at risk. It provides a straightforward percentage of new cases but lacks the granularity of the incidence rate, which relates new cases to time and population risk.

Morbidity rate generally refers to the incidence or prevalence of a disease within a population, but it does not specifically measure new cases in relation to person-time. Instead, it might encompass both new and existing cases, making it a less precise tool for understanding the rate of disease onset.

Prevalence indicates the total number of cases (new and existing) of a disease in a population at a given time, expressed as a proportion. Unlike incidence rate, it does not focus on new cases or the time factor, thus failing to provide insights into the rate of disease development over time.