Prospective assessment of the risk of obstructive sleep apnea in patients attending a tertiary health facility in Sub-Saharan Africa

Abstract

IntroductionThe impact of Obstructive sleep apnea (OSA) in worsening outcomes is profound, especially in the presence of comorbid conditions. This study aimed to describe the proportion of patients at a high risk of OSA in our practice setting.MethodsThe STOP BANG questionnaire and the Epworth Sleepiness scale were used to assess for OSA risk and excessive daytime sleepiness respectively. Hospitalized patients and out-patients were recruited. Intergroup differences in continuous variables were compared using the analysis of variance. The proportion of patients with high risk of OSA and excessive daytime sleepiness was presented as frequencies and group differences compared with the Pearson χ2 test. Independent risk predictors for OSA were assessed in multivariate logistic regression analysis.ResultsA total of 1100 patients (53.4% females) participated in the study. Three hundred and ninety nine (36.3%) had a high risk of OSA, and 268 (24.4%) had excessive daytime sleepiness. Of the participants with high OSA risk, 138 (34.6%) had excessive daytime sleepiness compared to 130 (18.5%) of those with low OSA risk (p).ConclusionA significant proportion of patients attending our tertiary care center are at high risk of OSA.

An Assessment of the Knowledge and Attitudes of Graduating Medical Students in Lagos, Nigeria, Regarding Obstructive Sleep Apnea

“…1,2 Of the hospital patients, none had been asked about sleep symptoms, referred for a sleep study or been diagnosed of OSA. 1,2 Of the hospital patients, none had been asked about sleep symptoms, referred for a sleep study or been diagnosed of OSA.…”

Obstructive sleep apnea and hypopnea syndrome in patients admitted in a tertiary hospital in Cameroon: Prevalence and associated factors

“…The prevalence of OSAHS defined as an apnea hypopnea index (AHI) � 5 per hour has varied from 6% in men and 4% in women (1993) to 83.8% in men and 60.8% in women (2013) [6][7][8]. In developing countries, particularly in sub-Saharan Africa (SSA), the prevalence of high risk of OSAHS, assessed by questionnaires, is between 30 and 60% [9][10][11]. Using portable sleep monitoring devices (PMD) or polysomnography, the prevalence of the disease in the general population is 28.5% and that of moderate to severe OSAHS is 6.3% while the prevalence is between 40-60% in patients attending hospital [10,12,13].…”

“…It amounts 40 to 80% in developed countries [14][15][16][17]. In SSA, few studies document the prevalence of OSAHS in health care setting [9,18]. In daily clinical practice, patients with high risk of OSAHS are frequently admitted to hospital, but the OSAHS is rarely detected and, as a consequence, subsequent management is not optimal [19].…”

Prevalence and Predictors of Sleep Apnea Risk among Ghanaian Stroke Survivors

“…[34,35] The lack of diagnostic testing together with the absence therapeutic interventions for sleep apnea such as Continuous Positive Airway Pressure devices are crucial gaps in the care of stroke survivors in LMICs where stroke mortality contributes 86% of the global stroke case fatality yearly [1]. Stakeholder engagement with the aim of garnering political will and support to establish sleep diagnostic and treatment centers at regional hospitals in the country would be a starting point to addressing this unmet health need.…”