Demography is the scientific study of human populations, including their size, composition, and distribution over time and space. It involves the collection and analysis of data about populations and population changes. The main sources of demographic data are national population censuses and surveys. Demographic data is important for planning health services and programs by providing information about the health status, size, and characteristics of communities. The 2011 Indian census collected data on population size, growth, density, age and sex composition, literacy rates, and other variables to help with policymaking and resource allocation.

1. Demography
RAKESH KUMAR PATIDAR
M .Sc. Nursing
NOOTAN COLLEGE OF
NURSING VISNAGAR

2. Demography
• Demography is the ”scientific study
of human population in which
includes study of changes in
population size ,composition and its
distribution”

3. ..
• “Demo” means “the people” and
“graphy” means “measurement”.
• (Demos = population, Graphy =
picture

4. Importance of Demographic data
 Health status of a community depends
upon the dynamic relationship between
number of people, their composition&
distribution
 Planning of health services can be guided
by demographic variables, for example:
How many health units do we need? How
to distribute them in the community in
order to be accessible to the target
population? What type of manpower is
needed?

5. The elements of demography
Size: increase or decrease
Composition: sex and age group
Distribution: territory

6. Source of demography
•POPULATION CENSUSES
•NATIONAL SAMPLE
•SURVEYS REGISTRATION
•VITAL EVENTS

7. Biggest source of data on
 Demography
 Economic Activity
 Literacy & Education
 Housing & Household
 Urbanization
 Fertility and Mortality
 Scheduled Castes and
Scheduled Tribes
 Language, Religion & Migration

8. DEMOGRAPHIC PROCESSE
• It deals with the five demographic
processes
• FERTILITY
• MORTALITY
• MARRIAGE
• MIGRATION
• SOCIAL MORBILITY

9. DEMOGRAPHIC CYCLE(STAGE)
• High stationary (first stage ): this stage is
characterized by a high birth rate and high
death rate ,no any change in size and
population .Indian was in this stage till 1920.
• Early expending (second stage ): the death
rate begins to decline (starts decreasing )and
birth rate no change . initial increase in
population

10. .
• Late expanding (third stage): the birth rate
begins to decline while the death rate still
decreases . continue increase in population
• Low stationary (fourth stage ) :
This stage is characterized by a low birth rate &
low death rate .stability in population .
Declining (fifth stage ):in the declining stage
birth rate is lower then the death rate .fall in
population

11. METHODS OF DATA COLLECTION
• Primary data collection :collection is
done by the individual by using the
methods such as :
• Observation
• Interviews
• Questionnaires
• Diaries

12. ..
• Secondary data collection :
• census
• National survey
• Registration of vital events
• Demographic studies
• Records

13. ANALYSIS AND INTERPRETATION OF DATA
• Data is collection directly or indirectly
from population . The data collected
directed from individuals by face to face
survey .
• Data collected during census.
• Data related to health from an
individual.
• Data related to illness from an
individual.

14. .
• The data which is collected from outside
the source such as records .
• Data taken from hospital records
• Data taken from census
• The data collected need to be arranged
in table ,charts ,diagrams, graphs picture

15. 0
1
2
3
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Category 1 Category 2 Category 3 Category 4
Series 1
Series 2
Series 3

16. 0
1
2
3
4
5
6
Category 1 Category 2 Category 3 Category 4
Series 1
Series 2
Series 3

17. 1 2 3 4 5

18. 58%
23%
10%
9%
Sales
1st Qtr 2nd Qtr 3rd Qtr 4th Qtr

19. 0% 20% 40% 60% 80% 100%
Category 1
Category 2
Category 3
Category 4
Series 1
Series 2
Series 3

20. Census of India 2011
• In 1872 the first Census
was held in India.
• The Census of India 2011 will be the
15th Census and the 7th after
Independence.

21. .
• Census 2011 will mark a milestone as
the National Population Register (NPR)
will also be prepared
• 1st Phase:
HOUSELISTING & HOUSING CENSUS
AND COLLECTION OF DATA ON
NATIONAL POPULATION REGISTER
• April to September 2010

22. ;
• 2nd Phase:
POPULATION ENUMERATION
9h to 28th February 2011
• Help in better targeting of the benefits and
services under the the Government schemes /
programmes .Improve planning
NPR – Utility
Create a comprehensive identity database in the
country

23. .
2001 2011
States/UTs 35 35
Districts 593 640
Tehsils 5463 5767
Towns 5161 7742
Villages 593732 608786
Households 194 Million 240 Million
Population 1.03 Billion 1.20 Billion

24. Census 2011 and Demographic Trends in Indian
Population 1,21,01,93,422 Male : 62,37,24,248
Female :58,64,69,174
Decadal
population growth
18,14,55,986 17.64%
Density of
population
382 Per sq .km
Sex ratio 940 Females per
1000 males
Population in the
age group (0-6)
15,87,89,287 13.12% (of total
population
Literates 77,84,54,120 74.04%
Male :82.14%

25. Items of Information: House listing
and Housing Census
• Information relating to Buildings- Use,
Quantity and Quality
• available to the Households
• Assets possessed by the Households
• Use of Houses, Drinking water, Availability and
type of latrines, Electricity

26. Items of Information: NPR
1 Name of person 6 Sex 11 Present
address of
usual
residence
2 Relationship to
Head
7 Date of Birth 12 Duration of
stay at present
address
3 Father’s Name 8 Marital Status 13 Permanent
Residential
Address
4 Mother’s Name 9 Place of Birth 14 Occupation /
Activity
5 Spouse’s Name 1
0
Nationality as
Declared
15 Educational
Qualification
Above
details
to
be
collected
from
all
Usual
Residents
Photograph, Finger Print and Iris (if approved) to be collected for Usual
Residents aged 15 years and above