incidence, relative incidence(noun)
the relative frequency of occurrence of something
the striking of a light beam on a surface
"he measured the angle of incidence of the reflected light"
The rate or ratio at which something occurs; as, the incidence of murder in Los Angeles; the incidence of cancer in men over 50.
Origin: [Cf. F. incidence.]
The act of something happening; occurrence
The extent, or the relative frequency of something happening
The striking of radiation or a projectile upon a surface
A measure of the risk that a person develops a new condition within a specified period of time, usually a year.
a falling on or upon; an incident; an event
the direction in which a body, or a ray of light or heat, falls on any surface
Origin: [Cf. F. incidence.]
Incidence is a measure of the risk of developing some new condition within a specified period of time. Although sometimes loosely expressed simply as the number of new cases during some time period, it is better expressed as a proportion or a rate with a denominator. Incidence proportion is the number of new cases within a specified time period divided by the size of the population initially at risk. For example, if a population initially contains 1,000 non-diseased persons and 28 develop a condition over two years of observation, the incidence proportion is 28 cases per 1,000 persons, i.e. 2.8%.
U.S. National Library of Medicine
The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.
British National Corpus
Rank popularity for the word 'Incidence' in Nouns Frequency: #2031
The numerical value of Incidence in Chaldean Numerology is: 5
The numerical value of Incidence in Pythagorean Numerology is: 3
Sample Sentences & Example Usage
It is true, that pilots have increased incidence of skin cancer.
The rise in the incidence and severity of cyber-attacks is of increasing concern.
We used to have much higher incidence rates, but we need more training and more equipment to continue to make progress.
There is no question that there's a much higher incidence of people falsely saying, quote, I did it, unquote, among individuals who have a history of mental illness.
Also cabin crew have increased incidence of skin cancer but there is no UV-exposure in the cabin, these facts might support the idea that pilots and cabin crew are exposed to excess amount of UV on their free time, which causes the excesses of their skin cancer.
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