case rate

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case rate

a pricing method in which a flat amount, often a per diem rate, covers a defined group of procedures and services. It is often used in services such as obstetrics and cardiovascular surgery for exceptions to a relative value scale or resource-based relative value scale. Also called case price.

bundled payment

A single comprehensive payment made to healthcare providers—hospitals and physicians—for a group of related services, based on the expected costs for a clinically defined episode of care.

case rate

Infectious disease The number of cases of a particular infection or exposure during a unit of time, divided by the population during that period; CRs are often expressed in terms of a population of 100,000


(rat) [L. rata, calculated]
The speed or frequency of occurrence of an event, usually expressed with respect to time or some other known standard.

acquisition rate

In radiology, the speed with which medical images are recorded, usually expressed in images per second.

attack rate

The rate of occurrence of new cases of a disease.

basal metabolic rate

Abbreviation: BMR
The metabolic rate as measured 12 hr after eating, after a restful sleep, with no exercise or activity preceding testing, with elimination of emotional excitement, and at a comfortable temperature. It is usually expressed in terms of kilocalories per square meter of body surface per hour. It increases, for example, in hyperthyroidism. Synonym: resting energy expenditure

baseline fetal heart rate

Abbreviation: FHR
The average range of beats per minute recorded within a 10-min time frame. The normal range is between 120 and 160 beats per minute.

birth rate

The number of live births per 1000 in the population in a given year.

case rate

Morbidity rate.

case fatality rate

The percentage of individuals afflicted with an illness who die as a result of it.

concordance rate

The frequency with which a gene will be inherited or expressed by identical or fraternal twins.

death rate

The number of deaths in a specified population, usually expressed per 100,000 population over a given period, usually 1 year. Synonym: death-to-case ratio; mortality rate

delivery rate

In assisted reproduction technology, the number of newborn deliveries achieved in every one hundred follicular aspirations, embryo transfers, or stimulated cycles.

dose rate

The quantity of medicine or radiation administered per unit of time.

erythrocyte sedimentation rate

Abbreviation: ESR
See: sedimentation rate

false-negative rate

The rate of occurrence of negative test results in those who have the attribute or disease for which they are being tested.

false-positive rate

The rate of occurrence of positive test results in those who do not have the attribute or disease for which they are being tested.

fertility rate

The number of births per year per 1000 women between ages 15 and 44 in a given population.

fetal mortality rate

The number of fetal deaths per 1000 live births, usually per year.

growth rate

The rate at which an individual, tissue, or organ grows over time.

heart rate

Abbreviation: HR
The number of heartbeats per unit of time, usually expressed or written as number per minute. A normal resting heart rate for an adult is 60–100 beats per minute.

infant mortality rate

The number of deaths per year of live-born infants less than 1 year of age divided by the number of live births in the same year. This value is usually expressed as deaths per 100,000 live births.
See: neonatal mortality rate; perinatal mortality rate

infusion rate

The speed of administration of a solution in mL/hr.


It is calculated by the following formula: Rate = (Dose × 60 × Body weight)/Concentration, in which the dose is in mcg/kg/min; 60 is in min/hr; weight is in kg; and the concentration of the substance in solution is in mcg/mL.
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maternal mortality rate

The number of maternal deaths in 1 year from puerperal causes (such as those associated with pregnancy, childbirth, and the puerperium) within 42 days after delivery divided by the number of live births in that same year. This value is usually expressed as deaths per 100,000 live births. See: illustration

maximum midexpiratory flow rate

Abbreviation: MMFR
The average airflow during the middle half of a forced vital capacity effort.

metabolic rate

The rate of utilization of energy. This is usually measured at a time when the subject is completely at rest and in a fasting state. Energy used is calculated from the amount of oxygen used during the test.
See: basal metabolic rate; basal metabolism

morbidity rate

The number of cases per year of certain diseases in relation to the size of the population in which they occur. Synonym: case rate

mortality rate

Death rate.

neonatal mortality rate

The number of deaths in 1 year of infants aged 0 to 28 days divided by the number of live births in that same year.
See: maternal mortality rate; perinatal mortality rate

peak expiratory flow rate

The maximum rate of exhalation during a forced expiration, measured in liters per second or liters per minute. It is used as a test of airway obstruction.

perinatal mortality rate

The number of stillbirths (in which the gestation period was 28 weeks or more) in the first 7 days of life divided by the number of live births plus stillbirths in the same year. This value is usually expressed as deaths per 100,000 live births plus stillbirths.
See: infant mortality rate; neonatal mortality rate

periodontal disease rate

See: periodontal (Ramfjord) index

pulse rate

The number of heartbeats per unit of time that can be detected by palpating any accessible artery.

respiration rate

The number of breaths per unit of time.

sedimentation rate

Abbreviation: ESR (erythrocyte sedimentation rate)
A nonspecific laboratory test used as a marker of inflammation. In this test the speed at which erythrocytes settle out of unclotted blood is measured. Blood to which an anticoagulant has been added is placed in a long, narrow tube, and the distance the red cells fall in 1 hr is the ESR. Normally it is less than 10 mm/hr in men and slightly higher in women.

The speed at which the cells settle depends on how many red blood cells clump together. Clumping is increased by the presence of acute-phase proteins released during inflammation.

specific absorption rate

The rate at which electromagnetic energy is absorbed by a kilogram of tissue, usually expressed as the heat absorbed by the tissue, or as the power absorbed per unit of mass.

ventilation rate

Abbreviation: VR
The number of breaths per minute.


the frequency with which an event or circumstance occurs per unit of time.

attack rate
the proportion of a population affected by a specific condition during a prescribed, usually short, period of time.
attribute-specific rate
the rate of occurrence of a specific attribute.
basal metabolic rate (BMR)
an expression of the rate at which oxygen is utilized in a fasting subject at complete rest as a percentage of a value established as normal for such a subject.
birth rate
the number of births during one year for the total population (crude birth rate), for the female population (refined birth rate), or for the female population of reproductive age (true birth rate).
case rate
morbidity rate.
case fatality rate
the number of deaths due to a specific disease as compared with the total number of cases of the disease.
cohort rate
the rate of occurrence of e.g. disease in cohorts.
death rate
the number of deaths per stated number of animals (1000 or 10,000 or 100,000) in a certain region in a certain time period.
erythrocyte sedimentation rate (ESR)
see erythrocyte sedimentation rate.
fatality rate
the number of deaths caused by a specific circumstance or disease, expressed as the absolute or relative number among individuals encountering the circumstance or having the disease.
five-year survival rate
an expression of the number of survivors with no trace of disease 5 years after each has been diagnosed or treated for the same disease.
forced expiratory flow rate (FEF)
see maximal expiratory flow rate (below).
glomerular filtration rate
an expression of the quantity of glomerular filtrate formed each minute in the nephrons of both kidneys, calculated by measuring the clearance of specific substances, e.g. inulin or creatinine.
growth rate
an expression of the increase in size of an organic object per unit of time.
heart rate
the number of contractions of the cardiac ventricles per unit of time.
incidence rate
describes the probability of a new case occurring during a stated time interval.
infection rate
percentage of the population from which a specific infectious pathogen is isolated.
rate-limiting enzymes
rate controlling enzymic steps in metabolic pathways. Often allosteric enzymes with allosteric effector sites but can be controlled through substrate availability, product removal or enzyme concentration.
maximal expiratory flow rate (MEFR)
the slope of the line connecting the points 200 ml and 1200 ml on the forced expiratory volume curve. See also pulmonary function tests. Called also FEF200-1200.
metabolic rate
an expression of the amount of oxygen consumed by the body cells.
morbidity rate
the number of cases of a given disease occurring in a specified period per unit of population.
mortality rate
death rate; the mortality rate of a disease is the ratio of the number of deaths from a given disease to the total number of cases of that disease.
reactor rate
percentage of reactors in a tested population.
respiration rate
the number of movements of the chest wall per unit of time, indicative of inspiration and expiration.
response rate
risk rate
see relative risk.
sedimentation rate
the rate at which a sediment is deposited in a given volume of solution, especially when subjected to the action of a centrifuge. See also sedimentation rate.
specific rate
expresses the frequency of a characteristic per unit of the population.
rate standardization
adaptation of a rate so that the conditions under which it occurred are comparable with those in which other rates have been estimated. There are several methods, e.g. the equivalent average death rate.
References in periodicals archive ?
While it is likely not cost effective to recommend STD screening of all older adults since case rates remain much lower than in younger adults, physicians need to be aware that older persons are often sexually active and potentially practicing unsafe sex.
Case rates among scholarship athletes were actually underrepresented in outdoor sports, and the spectrum of disease severity was in line with that found in past studies of the student population as a whole (8).
He knows of at least 10-15 hospitalist organizations that are using the case rate system.
This analysis is limited to reporting provisional TB cases and case rates for 2011.
After implementation of measures to control recent transmission in San Francisco, TB case rate declined from 46.
Furthermore, foreign-born individuals have a case rate of 22.
From 1953 to 1993, the single largest annual percentage decrease in TB case rate was 11.
A good example, using the bone marrow transplant analogy, is developing a bundled case rate for transplantation that involves all comprehensive services during a period of care, for a fixed cost.
4 In Case Rate Of Excise Duty And Sales Tax Not Specified Offer Should Be Evaluated With Maximum Rate Of Ed And St Quoted By Any Firm Against This Tender.
double dagger]) In 1989, CDC's Advisory Committee for Elimination of TB issued a strategic plan for the elimination of TB, setting an interim target case rate of 3.