Helen V Cole1, Ellis Owusu-Dabo2, Juliet Iwelunmor3, Valerie Newsome4, Karlijn Meeks5, Charles Agyemang5, Girardin Jean-Louis4. 1. Center for Healthful Behavior Change, Division of Health Behavior, Department of Population Health, NYU School of Medicine, 227 E. 30th St, 6th Floor, New York, NY 10016, USA. Electronic address: helen.cole@uab.cat. 2. School of Public Health, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana; Kumasi Centre for Collaborative Research, College of Health Sciences, Kwame Nkrumah University of Science and Technology, KCCR, UPO, PMB, KNUST, Kumasi, Ghana. 3. Department of Kinesiology and Community Health, College of Applied Health Sciences, University of Illinois at Urbana-Champaign, 123 Huff Hall, 1206 South 4th Street, Champaign, IL 61820, USA. 4. Center for Healthful Behavior Change, Division of Health Behavior, Department of Population Health, NYU School of Medicine, 227 E. 30th St, 6th Floor, New York, NY 10016, USA. 5. Department of Public Health, Academic Medical Center, University of Amsterdam, Meibergdreef 9 1105AZ, Amsterdam, The Netherlands.
Abstract
BACKGROUND: Associations between sleep duration and cardiovascular disease (CVD) risk factors have been demonstrated in past studies. However, previous studies have not investigated these relationships using objective sleep measures in sub-Saharan Africa. Our objective was to investigate the association between sleep duration and cardiovascular risk factors in a sample of community-dwelling Ghanaian adults. METHODS: We used wrist actigraphy along with a seven-day sleep diary to measure sleep duration, wake after sleep onset, sleep latency, and sleep quality. Participants were randomly selected from among those participating in the RODAM study in rural and urban Ghana. Outcome measurements included 10-year risk of CVD events, prevalent CVD, and metabolic syndrome. Additional participant characteristics were assessed using a structured questionnaire. Linear and logistic regression analyses were used to assess the relationships between sleep measures and CVD risk. RESULTS: A total of 263 participants from rural and urban Ghana participated. Total sleep time was positively associated with a 10-year CVD risk; this association remained after adjusting for age, sex, urban vs rural location, socio-economic status, physical activity, and sleep disturbance (β = 0.990, p = 0.015). Short sleep, defined as sleeping less than seven hours per night on average, was negatively associated with a 10-year CVD risk, and this relationship remained in the fully adjusted model (β = -2.100, p = 0.011). Sleep duration was not associated with prevalence of CVD or metabolic syndrome. CONCLUSION: Using actigraphy to measure sleep duration among a population of community-dwelling adults in sub-Saharan Africa is feasible. We found a positive association between sleep and CVD risk. No association was found between sleep duration and prevalent CVD or metabolic syndrome. The implications and new directions relating to these findings are stated.
BACKGROUND: Associations between sleep duration and cardiovascular disease (CVD) risk factors have been demonstrated in past studies. However, previous studies have not investigated these relationships using objective sleep measures in sub-Saharan Africa. Our objective was to investigate the association between sleep duration and cardiovascular risk factors in a sample of community-dwelling Ghanaian adults. METHODS: We used wrist actigraphy along with a seven-day sleep diary to measure sleep duration, wake after sleep onset, sleep latency, and sleep quality. Participants were randomly selected from among those participating in the RODAM study in rural and urban Ghana. Outcome measurements included 10-year risk of CVD events, prevalent CVD, and metabolic syndrome. Additional participant characteristics were assessed using a structured questionnaire. Linear and logistic regression analyses were used to assess the relationships between sleep measures and CVD risk. RESULTS: A total of 263 participants from rural and urban Ghana participated. Total sleep time was positively associated with a 10-year CVD risk; this association remained after adjusting for age, sex, urban vs rural location, socio-economic status, physical activity, and sleep disturbance (β = 0.990, p = 0.015). Short sleep, defined as sleeping less than seven hours per night on average, was negatively associated with a 10-year CVD risk, and this relationship remained in the fully adjusted model (β = -2.100, p = 0.011). Sleep duration was not associated with prevalence of CVD or metabolic syndrome. CONCLUSION: Using actigraphy to measure sleep duration among a population of community-dwelling adults in sub-Saharan Africa is feasible. We found a positive association between sleep and CVD risk. No association was found between sleep duration and prevalent CVD or metabolic syndrome. The implications and new directions relating to these findings are stated.
Authors: Omavi Bailey; Daniel Combs; Maria Sans-Fuentes; Cody M Havens; Michael A Grandner; Chithra Poongkunran; Sarah Patel; Sarah Berryhill; Natalie Provencio; Stuart F Quan; Sairam Parthasarathy Journal: J Clin Sleep Med Date: 2019-06-15 Impact factor: 4.062
Authors: Zoe C Waldman; Blayne R Schenk; Marie Grace Duhuze Karera; Arielle C Patterson; Thomas Hormenu; Lilian S Mabundo; Christopher W DuBose; Ram Jagannathan; Peter L Whitesell; Annemarie Wentzel; Margrethe F Horlyck-Romanovsky; Anne E Sumner Journal: Int J Environ Res Public Health Date: 2022-02-23 Impact factor: 3.390