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(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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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
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References in periodicals archive ?
28, 2011 (CENS) -- Responding to governmental policy to rein in the overheated realty market, Taiwan's domestic banks have tightened mortgage lending, resulting in the proportion of home mortgages down to 24.51% of the total loans at the end of October 2011, a new eight-year low.
Tumbo and colleagues found that the average proportion of rural-origin health science students nationally over the 4-year period studied was 26%.
Between 1991 and 2007, the proportion of students who had ever had sexual intercourse decreased (from 54% to 48%), as did the proportions reporting four or more lifetime partners (from 19% to 15%) and current sexual activity (from 38% to 35%).
The phi relationship, 1.618:1, known as the Golden Proportion or Divine Proportion, has long been used by artists, architects, designers, engineers, musicians, photographers, sculptors, surgeons and stock analysts alike to achieve excellence in their results.
The study analyzes and compares the proportions of ARMs and FRMs holders using two methods.
To obtain the tissues proportions of, calculations were performed as follows: TP=(TA/LA)*100, where: TP = the proportion of each tissue, TA=the tissue area, and LA = the leaf area as measured in the images.
Among the economic sectors, the proportions were highest in the information and communication sector, where more enterprises provided training for ICT specialists (53%) than for other personnel (47%).
It said the Pakistan Bureau of Statistics (PBS) must also publicly release the population numbers of non-Muslims and persons with disabilities, as well as data on internal migration at the district level which might help explain disparities in voter-to-population proportions.
Knowledge of the ideal dimensions and proportions of maxillary anterior teeth is a key component in creating an attractive smile during operative, orthodontic, and prosthodontic procedures.
Geometric and mathematical proportions and their relations to maxillary anterior teeth.