CHAPTER ONE

INTRODUCTION

1.1 Background of the Study

Hypertension is a leading risk factor for cardiovascular morbidity and mortality worldwide, contributing to over 10 million deaths annually (World Health Organization, 2021). In sub-Saharan Africa, rapid urbanization and changing dietary and activity patterns have driven a sharp rise in adult hypertension prevalence—from an estimated 19% in 2010 to nearly 30% by 2020 (Ulasi & Ijoma, 2022). Nigeria mirrors this trend: recent facility based surveys report that 28–32% of adult outpatients are hypertensive, with strikingly low levels of awareness, treatment, and control (Ejike & Ugwu, 2023). Patients attending tertiary hospitals in southeastern Nigeria often present with multiple lifestyle related risk factors; including high dietary salt intake, physical inactivity, obesity, and excessive alcohol use that complicate blood pressure management (Okafor, Adebayo, & Nwosu, 2024). At Federal Teaching Hospital, Abakaliki (FTHA), preliminary audit data from 2023 indicate that nearly 45% of hypertensive clinic attendees consume diets exceeding recommended sodium limits, while over 60% report sedentary lifestyles and 20% are classified as obese. Despite these observations, there has been no systematic assessment of how specific lifestyle behaviours correlate with blood pressure levels in this patient population.

1.2 Statement of the Problem

Uncontrolled hypertension remains rampant among patients at FTHA, contributing to a rising burden of stroke, heart failure, and chronic kidney disease in Ebonyi State. Although anti?hypertensive medications are available, poor lifestyle modification undermines therapeutic success: only one in five patients achieves target blood pressure control despite pharmacotherapy (Ejike & Ugwu, 2023). The absence of localized data on the prevalence and impact of modifiable risk factors impedes development of tailored, evidence based behavioural interventions. Without clear insight into which lifestyle practices exert the greatest influence on hypertension at FTHA, efforts to optimize patient education, support services, and resource allocation may be unfocused and less effective.

1.3 Aim and Objectives of the Study

The primary aim of this study is to determine the prevalence of key lifestyle risk factors and their association with blood pressure control among hypertensive patients at Federal Teaching Hospital, Abakaliki.

1. 1.3.1 Specific Objectives
2. To estimate the prevalence of high dietary salt intake, physical inactivity, obesity, and alcohol use among hypertensive outpatients.
3. To assess the relationship between each lifestyle risk factor and mean systolic and diastolic blood pressure readings.
4. To identify patient characteristics (age, sex, duration of hypertension) that modify the effect of lifestyle factors on blood pressure control.
5. To explore patients’ perceptions of barriers and facilitators to adopting healthier behaviours.

1.4 Research Questions

1. What proportion of hypertensive patients at FTHA report high dietary salt consumption, physical inactivity, obesity (BMI 30kg/m²), and regular alcohol use?
2. How do these lifestyle factors correlate with current systolic and diastolic blood pressure measurements?
3. Do demographic and clinical characteristics (e.g., age group, gender, duration since diagnosis) influence the strength of these associations?
4. What do patients perceive as the main obstacles and motivators to making lifestyle changes for blood pressure control?

1.5 Scope of the Study

This cross-sectional study will be conducted among adult hypertensive patients attending the Cardiology and Medical Outpatient Clinics of FTHA between August 2024 and February 2025. Quantitative data will be collected via structured interviews (n-300) to document lifestyle behaviours, anthropometric measurements, and blood pressure readings. In addition, a subset of 20 patients will participate in in depth interviews to explore attitudes toward lifestyle change. The study will exclude pregnant women and patients with secondary hypertension.

References

Ejike, C. E. C. C., & Ugwu, E. O. (2023). Lifestyle factors and blood pressure control among hypertensive Nigerian patients. BMC Public Health, 23, Article 647. https://doi.org/10.1186/s12889-023-16427-9

Okafor, H. U., Adebayo, A. M., & Nwosu, A. C. (2024). Dietary patterns and hypertension risk among adult outpatients in Southeastern Nigeria. Journal of Human Hypertension, 38(2), 215–223. https://doi.org/10.1038/s41371-023-00988-4

Ulasi, I. I., & Ijoma, C. K. (2022). Prevalence and determinants of hypertension in a rural community in Enugu State, Nigeria. Journal of Clinical Hypertension, 24(6), 505–513. https://doi.org/10.1111/jch.14475

World Health Organization. (2021). Hypertension fact sheet. Retrieved from https://www.who.int/news-room/fact-sheets/detail/hypertension