IJE Advance Access published online on October 31, 2005
International Journal of Epidemiology, doi:10.1093/ije/dyi219
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1 Chronic Disease of Lifestyle Unit, Medical Research Council, Tygerberg 7505, South Africa
* To whom correspondence should be addressed. Background Hypertension is one of the major causes of death in developed and underdeveloped nations. Essential hypertension and obesity may have their inception in childhood, with little data in African children to support these findings. Objectives were to determine the prevalence of overweight and hypertension in rural children in South Africa. Additionally, the association between fat-patterning ratios and blood pressure (BP) was investigated. Methods Data were collected from 1884 subjects (967 boys and 917 girls), aged 6-13 years, participating in the Ellisras Longitudinal Study. Height; weight; and triceps, biceps, subscapular, and suprailiac skinfolds were measured according to the protocol of the International Society for the Advancement of Kinanthropometry. Skinfold ratio was used as an indicator of the central pattern of body fat. Internationally recommended cut-off points for body mass index (BMI) were used. Hypertension, defined as the average of three separate BP readings where the systolic BP or diastolic BP is Results The prevalence of hypertension ranged from 1 to 5.8% for boys and 3.1 to 11.4% for girls, and that of overweight from 1.1 to 2.9% for boys and 0.6 to 4.6% for girls. The association between high systolic BP and high BMI was -3.0, while that for high diastolic BP and high BMI was -0.68. Conclusions The prevalence of hypertension is evident from the age 6 years for girls, while that of overweight was low. Overweight became evident from the age 10 to 13 years for both sexes. A significant association between high diastolic BP and high BMI was noted, while children with low BMIs were less likely to be hypertensive. Investigating habitual physical activity, fitness and dietary patterns will shed more light on the association of fat patterning and BP in this population.
Accepted April 20, 2005
Original paper
The association of fat patterning with blood pressure in rural South African children: the Ellisras Longitudinal Growth and Health Study
2 VU University Medical Center, Institute for Research in Extramural Medicine (EMGO), Amsterdam, The Netherlands
3 Department of Kinesiology and Physical Education, University of Limpopo, Sovenga, South Africa
K. D. Monyeki, E-mail: dan.monyeki{at}mrc.ac.za
Abstract 
95th percentile for age and sex, was determined.
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