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Type: Journal article
Title: A longitudinal study of the associations of children’s body mass index and physical activity with blood pressure
Author: Macdonald-Wallis, C.
Solomon-Moore, E.
Sebire, S.
Thompson, J.
Lawlor, D.
Jago, R.
Citation: PLoS ONE, 2017; 12(12):e0188618
Publisher: Plos One
Issue Date: 2017
ISSN: 1932-6203
Statement of
Corrie Macdonald-Wallis, Emma Solomon-Moore, Simon J. Sebire, Janice L. Thompson, Deborah A. Lawlor, Russell Jago
Abstract: Childhood blood pressure is a marker of cardiovascular disease risk in later life. We examined how body mass index (BMI) and physical activity, and changes in these, are associated with blood pressure in primary school-aged children. Data are from 1223 children aged 9 years (Year 4) in Bristol, UK, 685 of whom had been assessed at 6 years (Year 1). Child height and weight were measured, and children wore accelerometers for five days, from which average counts per minute, and moderate-to-vigorous-intensity physical activity and sedentary minutes per day were derived. At age 9 years, blood pressure was measured. Multiple imputation of missing data and adjusted linear regression models were used to examine associations. Child BMI at 9 years was cross-sectionally associated with higher systolic (SBP) and diastolic (DBP) blood pressure (mean difference [95% CI]: 1.10 [0.34, 1.87] mmHg and 0.86 [0.13, 1.60] mmHg, respectively, per SD of BMI). Prospective associations of BMI at age 6 with blood pressure at age 9 were consistent with these cross-sectional associations. However, change in BMI between 6 and 9 years was not strongly associated with subsequent SBP or DBP (0.68 [-0.61, 1.98] mmHg and 1.23 [-0.09, 2.54] mmHg, respectively). There was little evidence that physical activity or sedentary time were associated with blood pressure in either cross-sectional or prospective analyses. Greater childhood BMI is associated with higher blood pressure, and this association persists over several years. Prevention of excessive bodyweight from early childhood may be important in stemming the development of cardiovascular risk.
Keywords: Humans; Hypertension; Body Mass Index; Exercise; Longitudinal Studies; Cross-Sectional Studies; Blood Pressure; Diastole; Systole; Child; Child, Preschool; Female; Male
Rights: © 2017 Macdonald-Wallis et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
RMID: 0030079765
DOI: 10.1371/journal.pone.0188618
Appears in Collections:Medicine publications

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