Research Article Prevalence of Undiagnosed Hypertension and Associated Factors among Adults in Mizan-Aman Town, Bench Sheko Zone, Southwest Ethiopia: A Community-Based Cross-Sectional Study Sebsibe Elias 1 and Teshome Kabeta Dadi 2 1 Public Health Department, College of Health Sciences, Mizan•Aman College of Health Science, Mizan•Aman, Ethiopia 2 Department of Epidemiology, Faculty of Public Health, Institute of Health, Jimma University, Jimma, Ethiopia Correspondence should be addressed to Teshome Kabeta Dadi; tka1204@gmail.com Received 9 November 2022; Revised 27 March 2023; Accepted 30 June 2023; Published 10 July 2023 Academic Editor: Rahman Shiri Copyright©2023SebsibeEliasandTeshomeKabetaDadi. Tis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objectives. Tis study aimed to assess the prevalence of undiagnosed hypertension and associated factors among people aged 18 years and above in Mizan•Aman town of Bench Sheko Zone in Southwest Ethiopia. Study Design. A community•based cross• sectional study design was carried out among people aged 18 years old and above from April 1 to 30, 2021, in Mizan Aman town. Methods.Acommunity•basedcross•sectionalstudydesignwascarriedoutamongpeopleaged18yearsoldandabovefromApril1 to 30, 2021, in Mizan Aman town. Seven hundred ffty•nine subjects were selected by the multistage sampling technique. A structured pretested STEPwise questionnaire was used to interview the participants. Data entry and analysis were done using EpiData 3.1 and SPSS version 25 statistical software, respectively. Descriptive analysis was undertaken, and the results were presented using frequency tables, graphs, and statistical summaries. Te dependent variable has a dichotomized response of yes and no, and hence binary logistic regression was used to predict a dependent variable based on independent variables, and predictors having p ≤ 0.25 on the bivariable analysis were considered as candidates for the multivariable analysis. Odds ratios with their 95% confdence intervals were calculated to measure the strength of association, and fnally a p value <0.05 was considered statistically signifcant. Result. Te prevalence of undiagnosed hypertension was 14.8% with 95% CI [12.3–15.6]. Older age (AOR � 3.1, 95% CI [1.5–6.5]), male (AOR � 2.2, 95% CI [1.3–3.9]), low physical activity (AOR � 3.9, 95% CI [1.8–8.3]), low consumption of fruit and vegetable (AOR � 4.5, 95% CI [2.4–8.8]), and higher BMI (AOR � 2.7, 95% CI [1.6–4.6]) were sig• nifcantly associated with undiagnosed hypertension. Conclusion. Te current study outlined that the prevalence of undiagnosed hypertension was high in the study area. In addition, most of the risk factors identifed were modifable, and hence community• based preventive approaches like lifestyle modifcation, increasing awareness, and strengthening routine screening at primary health service facilities resulted in a substantial change in tackling the burden efectively. 1. Background Worldwide levels of undiagnosed hypertension (HTN) represent the global public health crisis. It afected around 22% of people aged 18 years and over and is responsible for an estimated 9.4 million deaths per year globally [1, 2]. Approximately 11 million U.S. adults with a usual source of health care have undiagnosed hypertension, placing them at increased risk for cardiovascular events [3]. In South•East Asian countries, more than 50% of people with hypertension remain undiagnosed [4]. Te prevalence of undiagnosed hypertension was found to be 30% in sub•Saharan Africa (SSA) [5]. Te study conducted in Dabat, Northern Ethiopia, re• veals that the largest proportion (83.4%) of patients had not been diagnosed and/or treated for HTN [6]. Te prevalence of undiagnosed HTN was 13.3% in Gulele sub•city, Addis Ababa, Ethiopia [7]. Another study conducted in Hawela Tula sub•city, Hawassa, Southern Ethiopia, reveals that the prevalence of undiagnosed hypertension was 12.3% [8]. Hindawi Advances in Medicine Volume 2023, Article ID 2746284, 10 pages https://doi.org/10.1155/2023/2746284