vital statitics or biostatistics

7/31/2019 Vital Statitics or Biostatistics

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Its a statistical datawhich relate the total

number of various kind ofbiologic or vital events tothe size and characteristics

of the affected population.


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Rate =

Where:a = frequency with which an event has occurred

during some specified place and period of time

a+b = the number of persons exposed to the riskof the event during the same place and period of time.

F = a figure called a factor referring to 100, 1000,

10,000 or 100,000. The purpose of F is to avoid resultsinvolving very small numbers or decimal numbers.The choice of the factors will depend upon the

magnitude of the numerator and denominator


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FERTILITY / BIRTH RATES

1. Crude Birth Rate (CBR)

- rough measure of

fertility in the population

CBR =


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2. General Fertility Rate (GFR)

- specific measure ofcrude birth rate

GFR =


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3. Age-Specific Fertility Rate (AFR)

- permits a more in-depthstudy of the differences in

fertility at specific ages through

out the reproductive period

AFR =


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MORTALITY / DEATH RATES

1. Crude Death Rate (CDR)

- rough measure of the

force of mortality or theprobability of dying in a

population

CDR =


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2. Age-Specific Death Rate (ADR)

-gives a better picture ofthe force of mortality in a given

population

ADR =


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3. Age and Sex-Specific Death

Rate (ASDR)-death rate that specifies

the age and sex

ASDR =


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4. Cause-Specific Death Rate

(CsDR)-rate that specifies the

cause rather than the age and

sex

CsDR =


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5. Proportional Mortality Rate (PMR)

-rate denotes the

percentage of all deaths

attributed to certain diseases. It

is used in ranking the cause ofdeath by magnitude of

frequency

PMR =


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6. Swaroops Index (SI)

-proportionality mortality

indicator. It gives the

percentage of all deaths which

occure in persons 50 years oldand above

SI =


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7. Case Fatality Rate (CFR)

-measures the killing power

of a disease or injury as

expressed in terms of

percentage

CFR =


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8. Infant Mortality Rate (IMR)

-considered as the mostsensitive indices of the healthconditions obtaining in a

population. Infant deaths isassociated with acutecommunicable diseases

CFR =


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9. Fetal Death Rate (FDR)

-includes abortion and stillbirths, generally attributed toprenatal causes and are therefore

influence more by endogenousthan environmental factors

FDR =


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10. Maternal Mortality Rate (MMR)

-measures the risk of dyingfrom causes associated withhildbirth. It is defined as the death

of a mother directly due topregnancy, labor, and postpuerperium days of delivery

MMR =


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12. Perinatal Mortality Rate (PMR)

- rate of the fetus or

neonate occurring around the

time of death

PMR =


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MORBIDITY / SICKNESS RATES

1. INCIDENCE RATE (IR)- measures the frequency of

occurrence of new case. It answers the

question of how frequent does a diseaseoccur with a given period of time

IR =

Attack Rate=


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MORBIDITY / SICKNESS RATES

2. PREVALENCE RATE (PR)- measures the status of a particular

disease within a given point of or interval

of time. It answers the question Whatproportion of the population are actuallyill with a particular disease or are infected

with a particular agent?

IR =


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Answer the following1. Crude birth Rate of Region IV

2. General Fertility Rate of Region 13. Crude Death Rate of the Region 10

4. Infant Mortality Rate of region VI

5. Age and sex specific death rate for male, 15-19 age

group, Philippines

6. Swaroops Index in of Male and female

7. Annual Incidence Rate for Influenza, Region 1

8. Case Fatality Rate for Gastroenteritis and colitis,Region 7

9. Proportional mortality rate for Tuberculosis in Region 3

10. Age-Specific Fertility Rate of Women 20-29 years old

vital statitics or biostatistics

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