Day and night blood pressure variability among older persons in South-Western Nigeria

Day and night blood pressure variability among older persons in South-Western Nigeria

Background: Hypertension is the largest contributor to the global burden of disease. Emerging risk factors for cardiovascular disease include blood pressure variability (BPV), but evidence on BPV is lacking among older Nigerians. We reported BPV in a cohort of older persons at the University College...

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Published in:The Nigerian postgraduate medical journal Vol. 29; no. 3; pp. 206 - 213
Main Authors: Adeoye, Abiodun, Adebusoye, Lawrence, Fakunle, Adekunle, Aderonmu, Olajumoke, Adebayo, Oladimeji, Michael, Obaro, Adetona, Moses, Thrift, Amanda, Olaiya, Muideen, Owolabi, Mayowa
Format: Journal Article
Language:English
Published: Mumbai Wolters Kluwer India Pvt. Ltd 01-07-2022
Medknow Publications and Media Pvt. Ltd
Medknow Publications & Media Pvt. Ltd
Wolters Kluwer Medknow Publications
Subjects:
Age
Aged
ambulatory blood pressure monitoring
Blood pressure
Demographic aspects
Health aspects
Hypertension
nigeria
older adults
Physiological aspects
Risk factors
variability
Nigeria
older adults
blood pressure
Nigeria
variability
Ambulatory blood pressure monitoring
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Summary:Background: Hypertension is the largest contributor to the global burden of disease. Emerging risk factors for cardiovascular disease include blood pressure variability (BPV), but evidence on BPV is lacking among older Nigerians. We reported BPV in a cohort of older persons at the University College Hospital (UCH), Ibadan. Methods: We conducted a retrospective cohort study of respondents aged >50 years within the Ibadan Ambulatory Blood Pressure Registry at the UCH, Ibadan, Nigeria. Socio-demographic characteristics, lifestyle habits and anthropometric measurements were obtained. Results: Among 639 respondents, 332 (52.0%) were female. The blood pressure (BP) variables were strongly associated with age. Compared with younger age groups, mean diastolic BP (DBP) was less at an older age, whereas mean pulse pressure was greater. During the wake-up and sleep periods, mean DBP and mean arterial BP were less with each increasing age category, whereas mean pulse pressure was larger with each increasing age category. BP dipping, systolic, diastolic and mean arterial BP decreased with age. Overall, timed BPV increased significantly with increasing age. The prevalence of white-coat hypertension was greater among older participants than younger participants. Most respondents in the 50-59 years' age group were non-dippers (55.8%), whereas 33.7% of older respondents were reverse-dippers. Conclusion: Older persons experienced a greater abnormal circadian blood variation and greater BPV than younger people. In Nigeria, follow-up data are needed to determine the prognostic significance of these data in this population.
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ISSN:1117-1936
2468-6875
DOI:10.4103/npmj.npmj_24_22