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body mass index
(redirected from Body-mass-index)

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index /in·dex/ (in´deks) pl. indexes, in´dices   [L.]
2. a unitless quantity, usually a ratio of two measurable quantities having the same dimensions, or such a ratio multiplied by 100.

body mass index  (BMI) the weight in kilograms divided by the square of the height in meters, used in the assessment of underweight and obesity.
cardiac index  (CI) cardiac output per unit time divided by body surface area.
Colour Index  a publication of the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists containing an extensive list of dyes and dye intermediates. Each chemically distinct compound is identified by a specific number, the C.I. number, avoiding the confusion of trivial names used for dyes in the dye industry.
Index Medicus  a monthly publication of the National Library of Medicine in which the world's leading biomedical literature is indexed by author and subject.
mitotic index  the ratio of the number of cells in a population undergoing mitosis to the number not undergoing mitosis.
opsonic index  a measure of opsonic activity determined by the ratio of the number of microorganisms phagocytized by normal leukocytes in the presence of serum from an individual infected by the microorganism, to the number phagocytized in serum from a normal individual.
phagocytic index  the average number of bacteria ingested per leukocyte of the patient's blood.
Quetelet index  body mass i.
refractive index  the refractive power of a medium compared with that of air (assumed to be 1). Symbol n or n.
short increment sensitivity index  (SISI) a hearing test in which randomly spaced, 0.5-second tone bursts are superimposed at 1- to 5-decibel increments in intensity on a carrier tone having the same frequency and an intensity of 20 decibels above the speech recognition threshold.
therapeutic index  originally, the ratio of the maximum tolerated dose to the minimum curative dose; now defined as the ratio of the median lethal dose (LD50) to the median effective dose (ED50). It is used in assessing the safety of a drug.
vital index  the ratio of births to deaths within a given time in a population.

body mass index
n. Abbr. BMI
A measurement of the relative percentages of fat and muscle mass in the human body, in which mass in kilograms is divided by height in meters squared and the result used as an index of obesity.

Body mass index (BMI)
A measurement that has replaced weight as the preferred determinant of obesity. The BMI can be calculated (in English units) as 703.1 times a person's weight in pounds divided by the square of the person's height in inches.

body mass index (BMI),
a formula for determining obesity. It is calculated by dividing a person's weight in kilograms by the square of the person's height in meters. An adult with a BMI of 25 to 29.9 is considered overweight. A BMI of 30 or greater indicates obesity.

Body Mass Index
A calculated value that correlates with body fat, which is used to define obesity; according to the WHO, increased risk of various obesity-related conditions occur at BMIs of ≥ 25

index (pl. indexes, in´dices) (L.)
1. the numerical ratio of measurement of any part in comparison with a fixed standard.
Barthel index an objective, standardized tool for measuring functional status. The individual is scored in a number of areas depending upon independence of performance. Total scores range from 0 (complete dependence) to 100 (complete independence).
bleeding index any of various methods of assessing bleeding in the gingival sulcus before or after treatment.
body mass index (BMI) the weight in kilograms divided by the square of the height in meters, a measure of body fat that gives an indication of nutritional status.
cardiac index cardiac output corrected for body size.
cephalic index 100 times the maximum breadth of the skull divided by its maximum length.
citation index an index listing all publications appearing in a set of source publications (e.g., articles in a defined group of journals) that cite a given publication in their bibliographies.
Colour index a publication of the Society of Dyers and Colourists and the American Association of Textile Chemists and Colorists containing an extensive list of dyes and dye intermediates. Each chemically distinct compound is identified by a specific number, the C.I. number, avoiding the confusion of trivial names used for dyes in the dye industry.
erythrocyte indices the mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration. These are all useful for evaluating anemias because they provide information on the size of the erythrocytes and the concentration of hemoglobin. Called also red cell or red blood cell indices.
glycemic index a ranking of foods based on the response of postprandial blood sugar levels as compared with a reference food, usually either white bread or glucose. See table.
left ventricular stroke work index (LVSWI) an index of the amount of work performed by the heart.
leukopenic index a fall of 1000 or more in the total leukocyte count within 1.5 hours after ingestion of a given food; it indicates allergic hypersensitivity to that food.
index Medicus a monthly publication of the national library of medicine in which the world's leading biomedical literature is indexed by author and subject.
opsonic index a measure of opsonic activity determined by the ratio of the number of microorganisms phagocytized by normal leukocytes in the presence of serum from an individual infected by the microorganism, to the number phagocytized in serum from a normal individual.
phagocytic index any arbitrary measure of the ability of neutrophils to ingest native or opsonized particles determined by various assays; it reflects either the average number of particles ingested or the rate at which particles are cleared from the blood or culture medium.
red blood cell indices (red cell indices) erythrocyte indices.
refractive index the refractive power of a medium compared with that of air (assumed to be 1).
short increment sensitivity index (SISI) a hearing test in which randomly spaced, 0.5-second tone bursts are superimposed at 1- to 5-decibel increments in intensity on a carrier tone having the same frequency and an intensity of 20 decibels above the speech recognition threshold.
therapeutic index originally, the ratio of the maximum tolerated dose to the minimum curative dose; now defined as the ratio of the median lethal dose (LD50) to the median effective dose (ED50). It is used in assessing the safety of a drug.

body mass index,
n obesity-determining formula according to which an individual's weight in kilograms is divided by the square of the individual's height in meters. A BMI of 27 or more indicates obesity.

body,
n any mass or collection of material.
body burden,
n the activity of a radiopharmaceutical retained by the body at a specified time after administration.
body dysmorphic disorder (BMD),
body fluid,
n a liquid portion of the body such as plasma, lymph, tears, saliva, and urine.
body, foreign,
n an object or material that is not normal for the area in which it is located.
body height,
n the overall length of the body from the crown to the bottom of the feet, usually taken in the standing position. Body length refers to the overall length taken in the supine position.
body image,
n a person's subjective concept of personal physical appearance. The loss of a limb, breast, or tooth may cause psychologic trauma because of unresolved conflict in the change of body image. A distorted body image may be a causal factor in anorexia nervosa and bulimia. See also disorder, body dysmorphic (BDD).
body, ketone,
n any of the compounds acetoacetic acid, betahydroxybutyric acid, and acetone that are formed in the liver and released in the blood. Elevated levels occur during excessive fat use such as in diabetes or starvation. See also ketoacidosis.
body mass index (BMI) calculation,
n a method for assessing obesity and determining optimal weight, which involves dividing body weight in kilograms by height in square meters.
body mechanics,
n the field of physiology that investigates actions and functions of the muscular system relating to body posture maintenance.
body, Schaumann's
n.pr a round to oval cytoplasmic inclusion composed of concentric deposits of an amorphous material. Present in the giant cells of sarcoidosis, in beryllium lesions, and sometimes in other giant cells.
body shields,
n.pl protective coverings patients are sometimes legally required to wear during radiographic examinations; usually a leaded apron containing lead 0.25 mm thick. The protective surface covers the torso and gonads.
body temperature,
n the level of heat produced and sustained by body processes. Variations and changes in body temperature are major indicators of disease and other abnormalities.

body mass index
Physiology A calculated value that correlates with body fat, which is used to define obesity; according to the WHO, ↑ risk of various obesity-related conditions occur at BMIs of ≥ 25. See Fat balance.

Patient discussion about body mass index.

Q. how can i know my body mass index? how do they calculate it.thank you. this is bse i have a problem with my weight and the right diet to take.i wana have some tips on that bse its too much for me.new year.

A. BMI is a simple method to have an estimation of your body weight. because just measuring weight is not enough because it differentiate between people due to their hight. a 5 footer does not have normal weight as a 6 footer...
here is a link to the WHO site that explains how to calculate it and what the results mean:
http://www.who.int/bmi/index.jsp?introPage=intro_3.html

Read more or ask a question about body mass index


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