census population by dr najeeb memon
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DEMOGRAHPIC DATAPopulation Census
BYDR: NAJEEB MEMON
ASSIST: PROF:
SOURCES OF DEMOGRAPHIC DATA
• In developing countries ( Pakistan) registration of births & deaths is grossly
• :. Demographic sample surveys are conducted yearly to estimate the births & deaths.
Incomplete Unreliable
CensusSurveys
Registration of births and deaths
Census Survey
Survey: is actually a technique that takes out a sample from a population scientifically to arrive at a decision for the entire population
Census: Enumeration of entire population & often the compilation of other
demographic, social & economic information
pertaining to that particular population at a
specific time.
Internal ObstaclesLack of trained staff
Poor transportation & cultural barriers
CENSUSIntroduction & History
=
• The number of persons in any community can be determined by Counting .
Census is a Characteristic of population
CENSUS COUNTING
Socio-economic
Demographic
• First complete census in SWEDEN (in 1749 A.D.)
• Other countries followed it
• In Indo-Pak the 1st 1867-1872, • & repeated in 1881. • Therefore , it has been carried out every 10th year.
Pakistan’s 1st in 1951,
2nd 1961
3rd 1972
4th 1981
5th in 1998 & 6th 2008
Methods of Census
• Census are taken by :
• 1) Enumeration• 2) Questionnaire • 3) Combined of both methods
• First method is used in Pakistan and USA, while the Questionnaire method in England
Planning & Preparation
TYPES OF CENSUS
• Census may either be “de facto” or “de jure”
a person is counted at the place he or she is found at the time of counting.
A person is counted at the place of its normal residence.
“de facto”
“de jure”
Registration of Vital Events(V.E)
• Whereas “Census” is an intermittent counting of Population,
• registration of births & deaths (V.E) keeps a continuous check on demographic
changes.
If it is complete and accurate, it can serve as
reliable source of health information.
System of Collection and Registration of Vital Events in
Pakistan
• Registration of Births & Deaths
The Registration of births and deaths is carried out throughout
Pakistan
excepting the Agencies and Tribal areas of N.W.F.P., Baluchistan
Continue..• The area of Sindh Province has however a different type
of system for registering these event.
From Medical Institutions
In the Urban areas :
In rural areas:
The hospitals & dispensaries to the local health authorities
Births and deaths registration is done by local
bodies.
it is done by the village Headman or
Union Council.
Other sources of Demographic Data
• Notification of Diseases• Hospital Records• Disease Registries• Other Health Services Record• Record Linkage• Health Manpower Statistics• Environmental Health Statistics• Population based Epidemiological studies
• Urbanization: Mass movement of rural population to urbanresulting in increasing of urban pop & growth of cities.
Some countries define:25000 or more Other countries:Minimum of 20 000
Metropolitan Area: 100000 or more people(important city at its core plus suburban & exurban areas that
surround the city)
Urban Agglomeration: 1 million population or more
Mega city: 10 million population or more
04/10/23 15
THANK YOU!
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