COMM 203– Demography:-

Course Description:
Demography is the study of size, territorial distribution and composition of population, changes therein and the components of such changes which may be identified as natality, mortality territorial movement and social mobility. A student of medicine is required to deal with health as a function of population. It is because an adequate understanding of medical and health problems of a community needs is the first place not only the sub-populations to which the total population may be divided according to the biological and social factors that have bearing on health and diseases. These subpopulations can be viewed, in analogy with human anatomy, as the structure of the community. Population composition or structure encompasses consideration of variation in the characteristics of a population including not only age, sex, marital status and the like but also such qualities as health, mental capacity and attained skill. Population charges through birth, deaths and balance of migration. Births and deaths for variation in their frequency. This aspect of demography which deals with the interaction of biological and social in mortality morbidity and fertility is of interest to the practitioners of Community Medicine to understand the health problems of the community in the right perspective.

The course emphasizes only that aspect of demography which has bearing on health and disease. This includes, sources of demographic data. Population composition with special reference to the population of Nigeria. Simple population theories; demography dynamic and transition, population estimation and fertility and mortality analysis immigration and world population.

Course Objectives:
At the end of the course, the student should be able to:

Understand the factors influencing population size, composition and distribution
Appreciate the health effects of population characteristics
Know the source of demographic data and how to use the data in assessing the health status of a community.


Lecture Topics:

Introduction and role of demography in Community Medicine
Source of Demographic data (census & V.R.). Descriptive demography with reference to – population of Nigeria and World population.
Mortality and fertility analysis
Population theorises and estimation population
Demography practical I

  • Construction of age sex pyramid
  • Calculation of single demographic indices and their interpretation

Demography II

  • Estimation of population
  • Calculation of fertility rates and their interpretation

Demographic III

  • Calculation of mortality rates and their interpretation