incidence


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Related to incidence: Incidence matrix, Normal incidence

incidence

 [in´sĭ-dens]
the rate at which a certain event occurs, as the number of new cases of a specific disease occurring during a certain period in a population at risk, in contrast to prevalence.

in·ci·dence

(in'si-dens), Do not confuse this word with prevalence.
1. The number of specified new events, for example, people falling ill with a specified disease, during a specified period in a specified population.
2. In optics, intersection of a ray of light with a surface.
[L. incido, to fall into or upon, to happen]

incidence

Epidemiology 
1. The number of new cases–in the form of a count or rate of a disease or condition, often an infection diagnosed each yr–classically measured as an attack rate.
2. The rate of occurrence of new cases of a disease or condition in a population at risk during a given period of time, usually 1 yr.

in·ci·dence

(in'si-dĕns)
1. The number of specified new events, e.g., people falling ill with a specified disease, during a specified period in a specified population.
2. optics Intersection of a ray of light with a surface.

incidence

The number of cases of an event, such as a disease, occurring in a particular population during a given period. Incidence is usually expressed as so many cases per 1000, or per 100,000, per year. Compare PREVALENCE.

incidence

1. The intersection of a ray of light with an optical surface. 2. The number of new cases of a specific disease or condition occurring during a specific period of time (e.g. 1 year) divided by the population at risk during that period. Example: the incidence of keratoconus in Olmsted County, Minnesota was found to be 2 cases per 100 000 population a year. See prevalence.

in·ci·dence

(in'si-dĕns) Do not confuse this word with prevalence.
Number of specified new events, during a specified period in a specified population.

Patient discussion about incidence

Q. Is it possible to get ADHD from suffering a traumatizing incident? lately, after the death of my Grandmother. I have been increasingly getting the symptoms of ADHD. I have suffered from some of the symptoms during my childhood, but now they are increasingly occurring. And I am finding it really hard to listen to Teachers, follow instructions and do coursework. Is it possible this was caused by the death of my grandmother?

A. I think you should look up depression. ADHD is something that does not “pop”, more reasonable to think is that you suffer from a slight depression. Check it out and see if it fits :
http://www.nlm.nih.gov/medlineplus/depression.html

Q. Is the incidence of breast cancer growing everyday? I have a small lump in my breast. My friends suggested me to have a regular mammogram as a precautionary step. My friend’s family women are having it yearly. But I am confused…Why is the need to go for mammogram without any problem. I think routine medical check-up is sufficient. Is the incidence of breast cancer growing everyday?

A. NO….its not increasing. I had my breast cancer found in early stages, 6 month back. I was lucky. You know why—I had my mammogram done just by fear of having it in future. In order to avoid any I did and was very lucky as it was found and soon cured. Most female take it as precaution and you should too. Apart from mammogram you must have clinical breast examination.

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References in periodicals archive ?
Regions that consistently posted the highest poverty incidence were Autonomous Region in Muslim Mindanao, Regions 12 and 13.
There was a decrease in the Talas and Jalal-Abad regions, as well as in Osh city along with the increase in the incidence of infectious and parasitic diseases in the country in general.
Table I.- Incidence and prevalence of ear cockle of wheat in Sargodha division.
Seasonal peaks of infections by various intestinal pathogens like salmonellosis, Escherichia coli, Entamoeba histolytica, Ascaris lumbricoides, Enterobius vermicularis and Strongyloides stercoralis which are associated in the pathogenesis of acute appendicitis exhibit a summer peak in some countries.15 Various studies have been done to determine the seasonal variation of acute appendicitis but with variable results.16 Studies in some warmer countries like United States, Canada, Iran, and South Africa showed peak incidence of AA during the warmer periods.16 It seems reasonable to assume that higher temperatures are associated with a higher risk of developing AA.
Malaria Incidence. According to reports from the Bureau of Vector-Borne Diseases for 2012-2017, the largest malaria outbreak occurred in 2012 with 45,413 cases, and incidence rates continuously decreased year to year to 11,179 cases in 2017.
Melanoma incidence rate ratios (IRR) increased across all SES classes: by 27% among men in the highest SES neighborhoods, and by 12% among men in the lowest SES neighborhoods.
Assuming that current new-cancer trends continue, the researchers predicted how cancer incidence would change over the course of 5 years.
The data were statistically analyzed using Pearson's correlation coefficient for disease incidence (%) and environmental factors.
The sentences “In 2009-2011, the national incidences of PKU were 0.073%, 0.076% and 0.072%, respectively.
The present study evaluates various parameters of these gastric neoplasms including their incidence and distribution according to age, sex and site.
However the reported incidence of breast cancer is low in China, in part because the government does not subsidize regular screening for breast cancer, the authors say.