Project – Impact of Environmental Sanitation on the Prevalence of Infectious Diseases among Elderly People in Lagos State

CHAPTER ONE

INTRODUCTION

1.1 Background to the Study

Environmental sanitation remains a fundamental component of public health, particularly in developing countries where rapid urbanization, population growth, and infrastructural deficits continue to pose serious health challenges. It encompasses the control of environmental factors that can potentially affect human health, including waste disposal, water supply, sewage management, housing conditions, and general cleanliness of surroundings. Poor environmental sanitation has been widely linked to the spread of infectious diseases such as cholera, typhoid fever, malaria, diarrhea, and respiratory infections (World Health Organization [WHO], 2020).

In Nigeria, environmental sanitation has been a persistent public health concern, especially in densely populated urban centers such as Lagos State. Lagos, being one of the fastest-growing megacities in Africa, faces significant sanitation challenges including inadequate waste management systems, overcrowding, poor drainage systems, and limited access to clean water. These environmental conditions create a fertile ground for the transmission of infectious diseases, disproportionately affecting vulnerable populations such as the elderly.

The elderly population, generally defined as individuals aged 60 years and above, is particularly susceptible to infectious diseases due to age-related physiological changes, weakened immune systems, and the presence of chronic health conditions (United Nations, 2019). As people age, their immune response becomes less effective, making them more vulnerable to infections and increasing the severity of disease outcomes. Consequently, exposure to unsanitary environmental conditions significantly heightens the health risks faced by this demographic group.

Healthcare facilities such as Lagos University Teaching Hospital (LUTH) play a crucial role in managing and treating infectious diseases among the elderly. However, the increasing burden of sanitation-related illnesses places pressure on healthcare systems, leading to overcrowding, increased healthcare costs, and reduced quality of care. Studies have shown that a significant proportion of hospital admissions in Nigeria are linked to preventable infectious diseases associated with poor environmental sanitation (Ezeh et al., 2017).

Furthermore, the relationship between environmental sanitation and infectious diseases is multifaceted. Poor waste disposal practices can lead to contamination of water sources, while stagnant water promotes the breeding of disease vectors such as mosquitoes. Inadequate housing and overcrowding facilitate the rapid spread of airborne infections. These factors collectively contribute to a higher prevalence of infectious diseases, particularly among the elderly who may have limited mobility and reduced capacity to maintain personal and environmental hygiene.

Despite government efforts such as monthly environmental sanitation exercises and public health campaigns, challenges persist due to weak enforcement of sanitation laws, inadequate infrastructure, and low public awareness. Additionally, socioeconomic factors such as poverty and illiteracy further exacerbate poor sanitation practices, thereby increasing disease prevalence.

Given these realities, it is imperative to examine the impact of environmental sanitation on the prevalence of infectious diseases among elderly individuals, particularly within a clinical setting like Lagos University Teaching Hospital. Such a study will provide valuable insights into the extent to which sanitation conditions influence health outcomes and inform policy interventions aimed at improving public health among the elderly population.

1.2 Statement of the Problem

Environmental sanitation continues to be a major public health challenge in Lagos State, despite various governmental and non-governmental interventions aimed at improving sanitation standards. The persistent occurrence of sanitation-related infectious diseases such as malaria, cholera, typhoid fever, and respiratory infections indicates that existing measures have not been sufficiently effective.

Among the most affected groups are elderly individuals, who are particularly vulnerable due to weakened immunity, underlying health conditions, and reduced physical resilience. In Lagos, the increasing number of elderly patients presenting with infectious diseases at Lagos University Teaching Hospital raises concerns about the role of environmental sanitation in influencing their health outcomes.

Poor waste management, inadequate drainage systems, overcrowded living conditions, and limited access to potable water are prevalent in many parts of Lagos State. These environmental factors contribute significantly to the spread of infectious diseases. However, there is limited empirical data specifically focusing on how these sanitation issues affect the elderly population, particularly within hospital settings.

Additionally, while several studies have examined environmental sanitation and disease prevalence in the general population, there is a noticeable gap in research that focuses on elderly individuals as a distinct group. This lack of targeted research limits the development of age-specific public health interventions and policies.

Furthermore, healthcare institutions such as Lagos University Teaching Hospital continue to experience a high burden of infectious disease cases among elderly patients, which could be linked to environmental factors outside the hospital setting. Without a clear understanding of this relationship, it becomes difficult to design effective preventive strategies.

Therefore, this study seeks to address this gap by investigating the impact of environmental sanitation on the prevalence of infectious diseases among elderly people in Lagos State, with a focus on Lagos University Teaching Hospital. The study aims to provide evidence-based insights that will guide public health policies and improve the well-being of elderly individuals.

1.3 Research Questions

1. What is the level of environmental sanitation in Lagos State?

2. What are the common infectious diseases affecting elderly patients in Lagos University Teaching Hospital?

3. What is the relationship between environmental sanitation and the prevalence of infectious diseases among elderly people?

4. How do sanitation practices influence the health outcomes of elderly individuals?

1.4 Objectives of the Study

The main objective of this study is to examine the impact of environmental sanitation on the prevalence of infectious diseases among elderly people in Lagos State.

The specific objectives are to:

1. Assess the level of environmental sanitation in Lagos State.

2. Identify common infectious diseases affecting elderly patients in Lagos University Teaching Hospital.

3. Examine the relationship between environmental sanitation and infectious disease prevalence among the elderly.

4. Evaluate the influence of sanitation practices on the health outcomes of elderly individuals.

1.5 Research Hypothesis

H₀ : Environmental sanitation has no significant impact on the prevalence of infectious diseases among elderly people in Lagos State.

H₁ : Environmental sanitation has a significant impact on the prevalence of infectious diseases among elderly people in Lagos State.

1.6 Significance of the Study

This study is significant in several ways. First, it will contribute to existing literature by providing empirical evidence on the relationship between environmental sanitation and infectious diseases among the elderly, a group often overlooked in public health research.

Second, the findings will be useful to policymakers and government agencies in designing effective sanitation and public health policies targeted at improving the health of elderly individuals in Lagos State.

Third, healthcare providers, particularly at Lagos University Teaching Hospital, will benefit from a better understanding of the environmental factors influencing disease prevalence among elderly patients, thereby improving diagnosis, treatment, and preventive strategies.

Finally, the study will raise awareness among the general public about the importance of environmental sanitation in preventing infectious diseases, especially among vulnerable populations.

1.7 Scope of the Study

This study focuses on the impact of environmental sanitation on the prevalence of infectious diseases among elderly people in Lagos State. It specifically examines elderly patients receiving treatment at Lagos University Teaching Hospital.

The study considers key environmental sanitation factors such as waste disposal, water supply, drainage systems, housing conditions, and hygiene practices. It also focuses on common infectious diseases affecting the elderly, including malaria, cholera, typhoid fever, and respiratory infections.

1.8 Operational Definition of Terms

• Environmental Sanitation: The control of environmental factors that affect human health, including waste management, water supply, and hygiene practices.

• Infectious Diseases: Diseases caused by pathogenic microorganisms such as bacteria, viruses, parasites, or fungi that can be transmitted from one person to another or through the environment.

• Elderly People: Individuals aged 60 years and above.

• Disease Prevalence: The total number of cases of a disease present in a population at a given time.

• Public Health: The science and practice of protecting and improving the health of populations through preventive measures.

Project – Impact of Environmental Sanitation on the Prevalence of Infectious Diseases among Elderly People in Lagos State