POPULATION DATA SOURCES

(Demographic Data)

Dept. of Geography & Environment (8th Batch)

Jagannath University, Dhaka

NAME & ROLL OF GROUP MEMBERS

NAMES ROLLS

MD. ALI IMTIAZ B-120602001

MD. IQRAMUL HASAN RAJU B-120602002

SONIA SHARMIN B-120602003

SHIFUL ISLAM SHISHIR B-120602004

MD. MASUD RANA B-120602006

NAZMUN NAHAR KHAN B-120602007

CHANDAN PERSI B-120602008

ANWAR MINZA B-120602015

SHAHANA ISLAM B-120602016

RIFAT ARA B-120602017

TERMS OF DEMOGRAPHIC DATA

SOURCES

Demography : study of statistical description and analysis of human population.

Population : summation of all the organism of the same group in a particular geographical area.

Population census : a complete population count at a point in time within a particular area.

Vital registration : registration on live Births, Deaths, Fetal deaths, Marriages, and Divorces.

Sample Survey: representative portion of the population .

TERM OF DEMOGRAPHIC DATA….

De-jure: counting of people based on their permanent

residence.

De-facto: counting of persons where they are present

at the time of the census period.

Sampling frame: a complete list of all the members of

the population that we wish to study.

Carrying Capacity: maximum sustainable size of a

resident population in a given area.

DEMOGRAPHIC DATA

Demographic data is the

study of the population its

static and dynamic

aspects.

Static aspect (age, sex,

race etc.)

Dynamic aspect (fertility,

morality,

migration)

TYPES OF DEMOGRAPHIC DATA

Mainly two types:

1) Cross-section data :

comparing the difference among the variables ;

observing many variable at a time.

2) Time series data :

data maybe historical in characters extending over a

period of time consisting of several years.

TYPES OF DEMOGRAPHIC DATA…..

On the Basis of Collection:

1) Micro Level data

collected from particular family ,

household or individual.

2) Macro Level data

collected from various household ,

countries as well as the whole world.

SOURCES OF DEMOGRAPHIC DATA

Population Census like population count.

Sample Survey like survey of households.

Vital Registration like births, deaths, marriage.

Administrative data/records like hospital records, ministry of education records .

Government Agencies,

Historical records such as church records etc.

POPULATION CENSUS

The main source of demographic data worldwide.

Census is defined as a complete population count at a

point in time within a specified geographical area.

A census provides more reliable and accurate data if

properly measure.

History:

Old Census: Babylonia (3800 B.C.)

Modern Census: England (1841)

USA (1850)

METHODS OF CENSUS TAKING

mainly two types of methods:

a) De-Jure

b) De-Facto

De-Jure:

The country of people according to the permanent

place of residence.

Examples: USA, Canada, Egypt etc.

DE-JURE….

Merits:

1) permanent picture of communication.

2) more realistic and useful statistics.

Demerits:

1) people maybe counted twice.

2) information often incomplete or incorrect.

3) omission of some persons.

DE-FACTO

The counting of persons where they are present at the

time of the census period.

Examples: UK, Bangladesh etc.

Merits:

1) less chance for the omission of persons

from the count.

2)less time than de-jure.

Demerits:

1) difficult to obtain information regarding persons

in transit.

2) incorrect picture of the population.

SAMPLE SURVEY

Sample: representative

portion of the population.

Sample Survey: A

sample survey is a study

that obtain data from a

subset of the population in

order to estimate population

attributes.

It doesn’t count whole

population.

SAMPLE SURVEY….

Merits:1) less time consuming than census.

2) checking the accuracy of the census.

3) studying the dynamics of the population.

Demerits:

1) it doesn’t show the complete picture of the

population.

2) not accurate or reliable as a census.

VITAL REGISTRATION

Vital registration is a regular and continuous registration

of vital events.

Its records vital statistics (birth certificate, death

certificate, marriage, divorce, abortion events etc.)

In developing countries, vital registration systems are

not properly measure because their economical

limitation.

ADMINISTRATIVE RECORDS

Used in almost every country & a common example of

such are health statistics from hospital.

Their reliability depends upon the completeness of the

administrative recording process.

Administrative records are very cost effective data

source, that’s why, many developing and less

developing countries not properly counted for their

economical crisis.

ADMINISTRATIVE RECORDS…..

Examples includes:

1) health statistics counted from hospital records.

2) employment statistics from employment

exchange services.

3) vital statistics compiled from the civil registration

system.

4) education statistics from enrolment reports of the

ministry of education.

OTHER SOURCES OF DEMOGRAPHIC DATA

Historical records provide a content for analysis and

causation.

Examples: Church records etc.

New methods of analysis such as surveillance

(observation) systems and GIS make data make

reliable.

DEMOGRAPHIC DATA SOURCES IN

BANGLADESH

Two types:

1) National

a) Census

b) Sample Survey

c) Demographic Surveillance System

d) Vital Registration

e) Demographic & Health survey

2) International

a) United Nations

b) Population Reference Bureau

c) US Census Bureau-International data base.

NATIONAL SOURCES (CENSUS)

a) Census:

conducted by BBS(Bangladesh Bureau of Statistics).

10 years interval.

first census 1974.

than, 1981, 1991, 2001, 2011.

NATIONAL SOURCES

b) Sample Survey

Various types of sample surveys are conducted in

Bangladesh like-

BDHS-Bangladesh Demographic & Health Survey.

HIES- Household Income & Expenditure Survey.

BDHS is conducted in every three or four years to serve

as a source of population data.

NATIONAL SOURCES

d) Demographic Surveillance System

DSS is short.

started in 1960.

mainly survey Family Planning, Child Nutrition etc.

NATIONAL SOURCES

d)Vital Registration:

very weak in Bangladesh.

not much developed birth and death registration system.

marriage registration are kept in Union Parishods.

e)Demographic & Health Survey (DHS):

Include population, health and nutrition.

reliable data for Bangladesh since 1994.

INTERNATIONAL SOURCES IN

BANGLADESH(BD)

a) United Nations(UN):

Compile global population data including BD.

Including number of population, population

density, growth etc.

b) Population References Bureau(PPB):

Population size & density projections, birth rate, death

rate, fertility, migration rate etc.

INTERNATIONAL SOURCES IN BANGLADESH

US census Bureau-International database:

provide population estimates internationally.

include data on population.

size , fertility measures , mortality & migration.

If you have any questions , please let us know??

THANK YOU