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This is the complete lecture note for PHS 204 Demography and social statistics in public health. You can read it online below, open it in the full viewer, or download the PDF for offline study. It pairs with the course's video lectures, so you can read and watch together.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS COURSE CODE: PHS 204 COURSE TITLE: Demography and Social Statistics in Public Health COURSE CREDIT LOAD: (2 Units C: LH 30) LISTS OF SERIES: • Series 1: Fundamentals of Demography and Public Health Applications • Series 2: Population Size, Composition, and Distribution in Nigeria • Series 3: Mortality, Fertility, and Migration in Demographic Analysis • Series 4: Population Policies, Growth Trends, and Health Planning • Series 5: Sources, Quality, and Presentation of Demographic and Health Data Outline for Series 1 Main Parts and Sub-Parts 1.1 Basics of demography • 1.1.1 Definition and scope of demography • 1.1.2 Key concepts and measures in demography • 1.1.3 Relevance of demography to public health 1.2 Demography and health issues • 1.2.1 Importance of demographic analysis in health planning • 1.2.2 Demographic features of the Nigerian population • 1.2.3 Health needs of different population groups 1.3 Social demographic variables in public health • 1.3.1 Age, sex, and population composition • 1.3.2 Education, occupation, and socio-economic status • 1.3.3 Influence of social variables on population growth 1.4 Knowledge, attitudes, and practices (KAP) in public health research • 1.4.1 Concept of KAP studies • 1.4.2 Applications of KAP in demographic research • 1.4.3 Limitations of KAP studies Introduction
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Demography is central to understanding how populations change and how these changes affect public health. Every society experiences shifts in population size, composition, and distribution, and these shifts influence health needs, planning, and policy. By studying demographic patterns, public health professionals can anticipate challenges such as ageing populations, urbanisation, or migration, and design interventions that respond effectively to these realities. The aim of this Series is to introduce you to the fundamentals of demography and to show how demographic concepts and tools are applied in public health. We shall commence this Series by exploring the basics of demography, including its definition, scope, and relevance to health. Next, we will examine the importance of demographic analysis in health issues, with particular reference to the Nigerian population and the health needs of different groups. Following that, we will move on to social demographic variables such as age, sex, education, and occupation, and consider how these influence population composition and growth. Finally, we will wrap up by studying knowledge, attitudes, and practices (KAP) as demographic tools in public health research, highlighting their applications and limitations. Series Learning Outcomes Upon completing this Series, you should be able to: • SLO 1.1 define demography and explain its scope and relevance to public health, • SLO 1.2 analyse the importance of demographic analysis in health issues and evaluate its role in health planning, • SLO 1.3 describe the demographic features of the Nigerian population and relate them to health needs of different groups, • SLO 1.4 identify key social demographic variables such as age, sex, education, and occupation, and explain how they influence population composition and growth, • SLO 1.5 explain the concept of knowledge, attitudes, and practices (KAP) in public health research, and • SLO 1.6 evaluate the applications and limitations of KAP studies in demographic analysis. 1.1 Basics Of Demography 1.1.1 Definition and scope of demography Demography is the scientific study of human populations, focusing on their size, structure, distribution, and changes over time. It examines births, deaths, migration, and other factors that influence population dynamics. The scope of demography extends beyond counting people, as it also considers the social, economic, and health implications of population trends. Fill in the blank: The scientific study of human populations, including their size and structure, is called ______.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Diagram showing the scope of demography, including population size, structure, distribution, and changes. Figure 1.1 Scope of demography 1.1.2 Key concepts and measures in demography Demography uses several key concepts and measures to describe populations. These include: • Population size: the total number of people in a given area. • Population distribution: how people are spread across regions. • Population composition: the characteristics of a population such as age, sex, and occupation. • Growth rate: the rate at which a population increases or decreases.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS These measures help public health professionals to identify trends and plan interventions. For example, knowing the age composition of a population helps in planning health services for children, adults, and the elderly. Fill in the blank: The characteristics of a population such as age and sex are referred to as population ______. Table 1.1 Key demographic measures Description: Table listing population size, distribution, composition, and growth rate with short definitions. 1.1.3 Relevance of demography to public health Demography is highly relevant to public health because it provides evidence for planning and policy. By studying population trends, health professionals can anticipate demands for services,
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS identify vulnerable groups, and allocate resources effectively. For instance, a high fertility rate may indicate the need for maternal and child health services, while an ageing population may require more geriatric care. Fill in the blank: A high fertility rate may indicate the need for ______ and child health services. [Insert Box here] Caption: Box 1.1 Relevance of demography to public health Content: • Guides health planning and resource allocation • Identifies vulnerable groups • Anticipates future health needs AI prompt suggestion: “Generate a box listing the relevance of demography to public health, including planning, identifying vulnerable groups, and anticipating needs.” Search string: “relevance of demography to public health OER” Pilot questions 1.1 1. Define demography. 2. List two key measures used in demography. 3. What does population composition refer to? 4. Why is demography important in public health? 5. Give one example of how demographic data can guide health planning. 1.2 Demography And Health Issues 1.2.1 Importance of demographic analysis in health planning Demographic analysis refers to the systematic study of population characteristics such as age, sex, fertility, mortality, and migration. In public health, it is crucial because it helps planners anticipate health needs and allocate resources effectively. For example, knowing that a community has a high proportion of children allows health authorities to prioritise immunisation programmes, while a population with many elderly people may require more geriatric services. Fill in the blank: The systematic study of population characteristics such as age and sex is called demographic ______.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Diagram showing how demographic analysis informs health planning (e.g., child population → immunisation, elderly population → geriatric care). Caption: Figure 1.2 Importance of demographic analysis in health planning 1.2.2 Demographic features of the Nigerian population The Nigerian population is characterised by rapid growth, a youthful age structure, and uneven distribution across regions. High fertility rates contribute to a large proportion of children and adolescents, while mortality rates vary between urban and rural areas. Migration, both internal and external, also shapes the population distribution. These features influence health needs, as a youthful population requires maternal and child health services, while regional disparities demand targeted interventions.
LA-NET | ONLINE LEARNING VIDEO PLATFORM FOR POST-SECONDARY & HIGHER INSTITUTION STUDENTS Fill in the blank: High fertility rates in Nigeria contribute to a large proportion of ______ and adolescents. Table 1.2 Key demographic features of the Nigerian population Table summarising fertility, mortality, age structure, and distribution patterns in Nigeria. 1.2.3 Health needs of different population groups Different population groups have distinct health needs. Children require immunisation and nutrition programmes, women of reproductive age need maternal health services, and the elderly often require chronic disease management. Public health planning must therefore be responsive to these varying needs, ensuring that services are equitable and accessible.
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