Abstract
Abstract
Background
Obstructive sleep apnoea (OSA) is increasingly being recognized as a risk factor for many diseases and also a major contributor to cardiometabolic morbidity. Despite this, OSA remains underdiagnosed, especially in middle- and low-income countries.
Objective: To determine the prevalence and risk stratification of obstructive sleep apnoea among medical outpatients in a Nigerian tertiary hospital.
Method:
A cross-sectional study was conducted among 387 adult outpatients at the Barau Dikko Teaching Hospital, Kaduna. Sociodemographic and clinical data were collected. OSA risk was assessed using the STOP-BANG questionnaire. Associations were analyzed using chi-square tests.
Results:
Mean age was 46.6 ± 16.1 years; 65.4% were female. High-risk OSA prevalence was 7.5%, while 36.2% were intermediate risk. Risk of OSA was significantly associated with age ≥50 years (p = 0.016), male gender (p = 0.044), and alcohol use (p = 0.014). Age of 50years and above, males and alcohol use were predictors of risk of OSA aOR 2.548, 95% CI (1.169,5.556); 9.747, 95% CI (3.090, 30.747); 3.521 95% CI (1.215,10.202) respectively but current cigarette use had no such effect aOR 0542, 95% CI(0.089,3.293).
Conclusion
A significant proportion of medical outpatients are at risk for OSA. Routine screening in Nigerian outpatient clinics is warranted.
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Copyright (c) 2026 Modupe Arinola, Ogunsina , Usman Ahmed Kana, Beatrice Ohunene Bello-Ovosi, Joseph Ogirima Ovosi, Oluwatitomi Damilola Ogunsina, Theophilus Thomas Dabot

