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Vital Stat
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Vital statistics
refers to e systematic stUdy of vital events.
Statistics
refers to a systematic approach of obtaining, organizing, and analyzing nUmerical facts so that conclUsion may be drawn from them.
Rate
is a ratio involving a time period.
RAte is tha coUnt or measUrement is observed over a period and then divided by its base/popUlation of observation.
Ratio
is called a proportion in e qUotient of
2
nUmbers.
CrUde/general rates
- referred to e total living popUlation.
Specific rate
- the relationship is for specific popUlation class/groUp.
Cases
- people afflicted w/ a diseases.
Incidence rate (IR
)- Measure the frequency of occurrence of the phenomenon during a given period of time.
Prevalence Rate (PR)
- measures the proportion of the population which exhibits a particular disease at a particular time.
Prevalence Rate (PR)
- this can only be determined following a survey of the population concerned
Attack Rate (AR)
- is a special incidence rate calculated for a particular population for a single disease outbreak and expressed as a percentage.
Prevalence
- determined by means of sUrvey.
NUmerator
- refers to the no. of times an event has occUred in a popUlation dUring a specified time.
Denominator
- It May Be Related To Population Mid Year Population.
Valid
measures what supposed to measure.
Precise/reliable
same results if used by different individuals in similar circumstances.
Relevant
contribute to the phenomenon of interest.
CBR
- is roUgh of the fertility of the popUlation.
The rate is called
crUde
for the ff. reason:
Only live birts are coUnted.
The
CBR and CDR
are statistical values that can be utilized to measure the growth or decline of a population.
Maternal Mortality Rate (MMR
) - Measure the risk of dying due to the process of pregnancy, childbirth and
puerperium.
NDR
- Measures the risk of dying in the first four weeks of life of the infant (newborn
Fetal Death Rate (FDR
) - Measures the risk of dying before birth
Global crude birth in 2005 -
20.15
per 1000
Germany -
8.33
51.33
in Nigeria
14.14
- USA
The where -
hardest
The nature and extent of imbalance depends on the nature and characteristics of
host and agent.
Host&Agent
- The characteristics of two are influenced considerably the condition of the
environment.
The
natural history of diseases
comprises the body of knowledge about the agent-host-environmentalfactors relating to the disease process.
Sensitive
- reflects small changes in health status.
Feasible
- ability to obtain data needed.