BIOSTAT Flashcards
It is data collected for another purpose by other individuals or organizations.
Secondary data
What are the Examples of secondary data ?
Ex:
birth and death certificates, population census records, patient medical records, disease registries, insurance claim forms and billing records, public health department case reports, and surveys of individuals and households. Methods of collecting data includes: Questionnaire,
It is the original data collected for a specific purpose by or for an investigator.
Primary Data
example of primary data are?
an epidemiologist may collect primary data by interviewing people who became ill after eating at a restaurant in order to identify which specific foods were consumed. Collecting primary data is expensive and time-consuming, and it usually is undertaken only when secondary data is not available.
Epidemiologists use ______ and_______ sources to calculate rates and conduct studies.
Primary and secondary data
Defined as the number of deaths assigned to given cause in a certain period divided by the number of cases of the diseases reported during the same period with a quotient multiplied by 100.
Example: United States, 1988- Reported number of male AIDS cases: 27, 598
Death from the disease: 13,886
CFP= x 100=3% mortality among reported AIDS cases
Case Fatality Proportion
defined as the number of existing cases of a given disease at given time divided by the population at that time with the quotient multiplied by 100, 000. Example: California, 1987- Number of men alive with AIDS: 27, 598
Population- 120, 203, 000 men
PP = AIDS cases per 100,000.
Prevalence Proportions
defined as the number of newly reported cases of a given disease in a calendar year, divided by the population on July 1 of that year with the quotient multiplied by convenient factor usually 100,000.
Example: California, 1987-Newly cases of age reported to the state health
department: 4878
Population: 27,663,000
IR= new cases of AIDS per 100,000 pop. Per year.
Incident Rate
Less precisely recorded than mortality. Such data are difficult to analyzed but they are nonetheless useful in program planning and evaluation.
MEASURES OF MORBIDITY
Defined as the number of live births in calendar year divided by the number of women ages 15-44 years old at midyear with the quotient multiplied by 1000.
Example: United States, 1987-Live births: 3,829,00
No. Of women ages 15-44:58,012,000
GFR= live births per 1000 women ages 15-44 per year.
General Fertility Rate
defined as the number of live births in a calendar year divided by the population on July 1 of that year, with quotient multiplied by 1000.
Example: California, 1987- Live birth: 494, 053
Population: 27,663,000
CBR = live birth per 1000 population that year.
Crude Birth Rate
Considered indispensable when approaching population control problems. The two most common measures of fertility are the crude birth rate and general fertility rate.
MEASURES OF FERTILITY
defined as the number of fetal plus neonatal deaths divided by the number of live birth plus fetal death, with the quotient multiply by 1000.
Example: California, 1987- Fetal Deaths: 3477
Neonatal Death- 2780
Perinatal Mortality Proportion
Defined as delivery of the fetus that shows no evident of life. It is defined as the number of fatal death in a calendar year divided by the number of live birth in that calendar year, with the quotient multiplied by 1000.
Example: California, 1987- Fetal deaths: 3477
Live birth: 494,053
FTR x1000=7.0 fetal deaths per 1000 live birth Live birth: 494, 053
Fatal Death Ratio
Defined as the number of deaths of persons of ages 0-1 in a calendar year divided by the number of live births in that year, with the quotient multiplied by 1,000.
Example: California, 1987- Live birth: 494, 05
Infant death: 4,546
IMR = infant deaths per 1000 live births per year.
Infant Mortality Rate
Is defined as the number of deaths assigned to puerperal causes (related to childbearing) in a calendar year divided by the number of live births in that year with the quotient multiplied by 100,000.
Example: United States, 1987- death assigned to puerperal cause: 253
Live birth: 3, 829,000.
MMR= maternal deaths per 100,000 live births.
Maternal Mortality Ratio
Is defined as the number of deaths assigned to specific cause in a calendar year divided by the total number of deaths in that year, with the quotient multiplied by 100.
Example: United States, 1987- total deaths from all causes: 2,123, 000
Death with assigned malignant neoplasm: 476, 927
PMR = x100=22.5% of total deaths per year from malignant neoplasm.
Proportional Mortality Ratio
is one of many possible examples of how the idea of specific death rates maybe extended simultaneously to cover two characteristics.
Example: India, 1988-
Cause: Accident white male population- 100,589,000
Non-white male population- 17,942,000
Cause-Race- Specific Death Rate
Defined as the number of deaths assigned to specific cause in a calendar year divided by the population on July 1 of that year, with quotient multiplied by 100,000.
Example: Philippines, 1990- Cause: Accident
Population: 243, 827,000
Deaths: 94 840
CSDR = x 100,000= 38.9 deaths per 100,000 pop. Accidental death. 94,840
Cause-Specific Death Rate
is defined as the number of deaths in a specific age group in a calendar year divided by the population of the same age group on July 1 of that year, with the quotient multiplied by 1000.
Example: United State, 1987
Age group: 25-34 years old population-43,513,000
No. of deaths: 57, 701
ASDR = x 1000= 1.3 deaths per 1000 population.
Age Specific Death Rate
is defined as the number of deaths in a calendar year divided by the population on July 1 in that year.
Example: California, 1987-27, 663,000
Deaths- 210,171
ACDRx1000= 7.6 death per 1000 population per year.
Annual Crude Death Rate
refer to number of deaths.
MORTALITY