The proportion of individuals in a population having a disease or characteristic. Prevalence is a statistical concept referring to the number of cases of a disease that are present in a particular population at a given time, whereas incidence refers to the number of new cases that develop in a given period of time.

Number of instances of existing cases of a given disease or other condition in a given population at a designated time; sometimes used to mean prevalence rate. Note: When used without qualification, r [..]

The number of illnesses, accidents or sick persons in a given population and time, without distinction between new and old cases.

The number of people with a particular disease at any given time in a population

1590s, "fact of having mastery," from Middle French prévalence (15c.), from Late Latin praevalentia, from praevalens, present participle of praevalere (see prevalent). Meaning "conditio [..]

A measure of the proportion of people in a population affected with a particular disease at a given time.

How common a disease or condition is within a population, either at a point in time or over a given period of time (it includes new and existing cases). It is different from incidence.

The number or proportion (of cases, instances, and so forth) in a population at a given time. In relation to cancer, refers to the number of people alive who had been diagnosed with cancer in a prescribed period (usually 1-, 5-, 10- or 26-years). Compare with incidence

The number or proportion (of cases, instances, etc.) present in a population at a given time. Compare with incidence.

n. Frequency.

The proportion of a population that is affected with a particular disease or condition at a given time. (See also Wikipedia definition)

Proportion of persons affected with a particular disease at a specified time. Prevalence obtained from high-quality studies can inform pretest probabilities.

The proportion of people with a finding or disease in a given population at a given time

A numerical value showing the total incidents of diseases or disorders in a specific population during a specific time-frame (called "point prevalence") With inclusion of a specified period [..]

The number of people alive on a certain date who have been diagnosed with cancer at any time in their lives. This is different from incidence in that it considers both newly diagnosed and previously d [..]

The number of people who have received a diagnosis of cancer during a defined time period, and who are alive on the last day of that period. Most prevalence data in SEER is for limited duration becaus [..]

The proportion of a population found to have a condition.

(French : prévalence) Frequency of a disease in a population, counting both old and new cases.

The percentage of a population that is affected with a particular disease at a given time. Compare to Incidence.

the number of people in a given group or population who are reported to have a disease.

The baseline risk of a disorder in the population of interest.

Prevalence describes how common a particular characteristic (for example, a disease) is in a specific group of people or population at a particular time. Prevalence is usually assessed using a cross sectional study.

(n) the quality of prevailing generally; being widespread(n) (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the [..]

A measure of the proportion of persons in the population with a particular disease at a specified time.   

The number of people in a given group or population who are reported to have a disease.

Prevalence is defined as the number of cases of a disease existing in a given population at a specific period of time (period prevalence) or the number of cases of a disease  in a given population tha [..]

The number of persons in a population that are affected with a particular disease at a given time.

Proportion of persons in a population currently affected by a particular disease. Prevalence rate is the number of cases of a specific disease at a particular time divided by the population at that ti [..]

The number of instances of a given disease or other condition in a given population at a designated time; sometimes used to mean prevalence rate. When used without qualification, the term usually refe [..]

The total number of persons with the disease or attribute at any time during a year. It includes cases of the disease arising before but extending into or through the year as well as those having thei [..]

The total number of persons known to have had the disease or attribute for at least part of their life.

The total number of persons known to have had the disease or attribute at any time during a specified period.

The number of persons with a disease or an attribute at a specified point in time (Last, 1988).

The number of existing disease cases in a defined population during a specific time period [contrast with incidence].

the proportion of a population with a specific disease or condition at a given point in time.

The total number of cases of a given Disease in a specified Population at a designated Time. It is differentiated from Incidence, which refers to the number of new cases in the Population at a given T [..]

The number or proportion of people with a particular disease or condition in a given population and at a specific time. See Related Term(s): Incidence

The total number of cases of a given disease in a specified population at a designated time. It is differentiated from INCIDENCE, which refers to the number of new cases in the population at a given t [..]

the total number of cases or outbreaks of a disease that are present in a population at risk, in a particular geographical area, at one specified time or during a given period.

The number of disease cases (new and existing) within a population at a given point in time.

the number of people in a given population affected with a particular disease or condition at a given time. Prevalence can be thought of as a snapshot of all existing cases at a specified time.

The number of disease cases (new and existing) within a population over a given time period. [7]

Proportion of the whole population affected.

 The number of disease cases (new and existing) within a population over a given time period.

the number of cases of a specific disease in a given population at a certain time

The number of cases at a given time in a population at risk of exposure.

The number of disease cases (new and existing) within a population over a given time period.

The percent of cows or mammary gland quarters that are infected at any one time. Pseudomonads:

The number of events (e.g. cases of disease) present in a defined population at one point in time.

The percentage of a population that is affected with a particular disease at a given time.

The number of people in a given population affected with a particular disease or condition at a given time. Prevalence can be thought of as a snapshot of all existing causes at a specified time.

The proportion of the population that has committed at least one crime or delinquent behaviour during the period of study. It is also applicable to the level and extent of victimization within a popul [..]

An indicator of how common a condition is; the proportion of a population found to have a specific condition at a given point in time.

The number of persons having a specific characteristic or problem, divided by the number of persons in the study population who are considered to be at risk of having the problem, usually expressed as [..]

The proportion of people with a given condition at a given time, usually given as a percentage (e.g. 20%) or a ratio (1 in 10,000). For example, the prevalence of obesity among American adults in 2001 [..]

The number or proportion of cases or events or conditions in a given population.

Is the proportion of individuals in a population who have the disease at a specific instant or during a specified period of time.

The proportion of the population with a particular status or condition. Prevalence is usually expressed as a percentage or a number of people per unit of the population. Prevalence Rate:

The proportion of persons with a particular disease within a given population at a given time.

Prevalence is the total number of cases of a disease in a given population at a specific time, or the percentage of population estimated to have that particular disease. “Population”, as used as a den [..]

The percent of the population with a particular condition or characteristic. To calculate prevalence you need to sum the number of individuals with a certain condition/characteristic and divide it by [..]

Proportion of host individuals infected with a particular parasite. Often expressed as a percentage. A measure of how widespread an infection or disease in a host population is. Sometimes used to indi [..]

is a measure of disease frequency. Prevalence quantifies the number of existing cases (prevalent cases; i.e. people with a disease or an attribute) in a population at a point in time or during a period of time.

Prevalence is the number of cases of a disease, infected people, or people with some other attribute present during a particular interval of time. It is often expressed as a rate (e.g., the prevalence of diabetes per 1,000 people during a year).

The overall prevalence is the number of persons in a defined population who have been diagnosed with a specific type of cancer, and who are still alive at  a given point in time (cancer survivors). Five-year prevalence includes only cancer survivors who were diagnosed up to 5 years earlier. It is a particularly useful measure of the cancer burden, [..]

Prevalence is a useful measure that provides health care planners and support personnel with the number of people who remain alive following the diagnosis of a chronic disease or who currently have the disease or condition in the case of other diagnoses.

  the number of instances of a given disease or other condition in a given population at a designated time

The number or proportion of cases, events (for example, occurrence of a disease), or conditions in a given population. 

Total number of cases of a disease in a specific population at a given point in time.

indicates the proportion of people in a population who have a certain sign or disease at the time point of the research, irrespective of when they fell ill or when the signs appeared. In order to be a [..]

The quality or condition of being prevalent; wide extension. (epidemiology) The total number of cases of a disease in a given statistical population at a given time, divided by the number of indiv [..]