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Related to proportion: Direct proportion


(1) The number of people with a specific condition or attribute at a specified time divided by the total number of people in the population.
(2) The number or proportion of cases, events or conditions in a given population.
A term defined in the context of a 4-cell diagnostic matrix (2 X 2 table) as the amount of people with a disease, X, relative to a population.

Veterinary medicine
(1) A clinical estimate of the probability that an animal has a given disease, based on current knowledge (e.g., by history of physical exam) before diagnostic testing.
(2) As defined in a population, the probability at a specific point in time that an animal randomly selected from a group will have a particular condition, which is equivalent to the proportion of individuals in the group that have the disease. Group prevalence is calculated by dividing the number of individuals in a group that have a disease by the total number of individuals in the group at risk of the disease. Prevalence is a good measure of the amount of a chronic, low-mortality disease in a population, but is not of the amount of short duration or high-fatality disease. Prevalence is often established by cross-sectional surveys.


percentage or fraction of a whole. Often expressed also as a rate or ratio by comparison to a total or other population.

proportion differences
estimating the significance of differences between two proportional morbidities or mortalities.

Patient discussion about proportion

Q. I have found that my body weight has high proportion of water in total weight.. I have found that my body weight has high proportion of water in total weight, and it makes me to take less water and there by increasing my thirst, which in turn stresses my body a lot, what can I do to reduce this problem…..?

A. Your body has a way of compensating when it is lacking something. When you are dehydrated, your body will retain fluids, hence the excess water.
drink plenty of water daily and you will find that you will lose this puffiness as your body adjusts to getting what it needs.

More discussions about proportion
References in periodicals archive ?
There exists a gulf of almost 20 percentage points between Punjab, the province with the highest voter-to-population proportion of women voters (45.
New official figures show that the proportion with the highest possible result has risen by almost 50% in five years.
Is the proportion of new HIV infections among adults in sub-Saharan Africa that occurred in women.
The age of rural NB nurses is higher than NB urban nurses, with a greater proportion of rural NB nurses over 55 years of age compared to all NB nurses.
Specifically, they wanted to learn what proportion of all deaths in US adults with HIV are caused by cardiovascular disease, how that proportion changed over time, and how that proportion compared with rates in other US groups without HIV.
The proportion of pupils achieving A*-C passes was 69.
Width dimensions were quantified by geometric proportions, related to each other and compared with golden proportion, recurring esthetic dental proportion (RED) and golden percentage.
Lombardi was the first to propose the application of the Golden proportion in the dentistry, but he also cautioned "It has proved strong for dental use.
The Golden Proportion has been identified in products and constructions from ancient Egyptian times.
2% ranked behind infrastructure and real estate firms in the proportion of women holding the highest level of senior positions.
The second reality is a direct consequence of the first: Since every feeder's discharge stream varies to one degree or another, the proportion of any and all ingredients in the composite formulation stream necessarily varies as a result.
Among the variables found to be positively related to rates of teen motherhood at the ZIP code level are: the proportion of the community divorced; the proportion of the community separated; the proportion of the labor force working, on average, 15-35 hours per week; the proportion of the labor force working in finance related industries; and the proportion of the population living in poverty.