BackgroundIn South Africa, especially in the Eastern Cape province, despite reported high prevalence of underweight and obesity, little is known regarding the relationship of body composition (BC) with blood pressure (BP) in primary school children. Understanding the relationship between BC and BP in these children is important because it is associated with adverse effects on health and social repercussion in both adolescence and adulthood.AimThe aim of this study was to examine the relationship between BC and BP among South African primary school children.SettingThis study was conducted on a cohort of primary school learners in the Eastern Cape Province of South Africa.MethodsA school-based cross-sectional survey was conducted among 876 school children aged 9–14 years, using multistage sampling techniques. Body mass and stature were measured using a calibrated scale. Anthropometric measurements including weight, height, waist circumference, triceps, gluteal and subscapular were also collected. Body mass index, percentage body fat and waist-to-hip ratio were calculated.ResultsOf the 876 participants, 356 (40.6%) were boys and 520 (59.0%) were girls. The Spearman’s rho correlation coefficients revealed positive significant correlations between systolic BP with age (r = 0.171; p < 0.0001), stature (r = 0.205; p < 0.0001), weight (r = 0.277; p < 0.0001), body mass index (r = 0.243; p < 0.0001), waist circumference (r = 0.259; p < 0.0001), gluteal (r = 0.214; p < 0.0001), triceps (r = 0.203; p < 0.0001), subscapular (r = 0.167; p < 0.0001), body fat percentage (r = 0.206; p < 0.0001), fat mass (r = 0.257; p < 0.0001) and fat-free mass (r = 0.238; p < 0.0001). There was no statistically significant correlation between waist-to-hip ratio and systolic BP (r = 0.064; p = 0.059). In terms of diastolic BP, there existed no significant correlations with age (r = 0.026; p = 0.443) and waist-to-hip ratio (r = 0.002; p = 0.947). Collectively, the prevalence of hypertension was 76.4% in the normal group compared with those who were pre-hypertensive (18.4%) and hypertensive (5.3%). Girls showed a higher prevalence of pre-hypertension than boys (19.6% compared with 16.6%, respectively).ConclusionThere is a relationship between most of the BC variables and BP in children. The screening of BP as part of physical examinations of school children is necessary for early prevention and intervention programmes for hypertension.

Background The problem of cardiovascular diseases and lack of adequate information about the blood pressure profiles among children in South Africa has enormous consequences for public health and the general well-being of communities. Aim The aim of this study is to determine the blood pressure profiles and associated risk factors of primary school children in South Africa. Methods A cross sectional study was conducted among 876 children aged 9 to 14 years from 18 randomly selected schools in the Eastern Cape province of South Africa. Standardised blood pressure measuring instruments were used and an average of three readings was considered. Blood pressure status was classified according to the percentiles of systolic blood pressure (SBP). Results The overall prevalence of hypertension was 5.2% and pre-hypertension was 18.5% while normal blood pressure was 76.3%. The multilevel binary logistic regression’s crude and adjusted analysis revealed that increase in age was significantly associated with elevated BP in children ([crude OR = 1.17 [1.05 – 1.29] and [adjusted OR = 1.12 [1.01 – 1.25]). In addition, increase in BMI was significantly associated with elevated BP in children ([crude OR = 1.08 [1.04 – 1.12] and [adjusted OR = 1.06 [1.02 – 1.11]). There was no statistically significant association between elevated BP and gender for both the univariate and multivariate models. There was also no statistical significant risk for elevated BP associated with place of residence. Conclusions In this sampled population the established proportion of primary school children with elevated BP is of great concern. In addition, older children and those with high BMI (that is, overweight/obesity) were associated with elevated BP. Interventions towards promoting healthy lifestyles among school learners is a necessity if we are to prevent cardiovascular diseases.

Purpose – Identifying and addressing poor nutritional status in school-aged children is often not prioritized relative to HIV/AIDS treatment. The purpose of this paper is to elucidate the benefits of integrating nutrition (assessment and culturally acceptable food supplement intervention) in the treatment strategy for this target group. Design/methodology/approach – The authors conducted a randomized, double blind pre-/post-intervention trial with 201 HIV-positive children (six to 15 years) in Botswana. Eligibility included CD4 cell counts < 700/mm3 (a marker for the severity of HIV infection), documented treatment with antiretroviral (ARV) drugs, and no reported evidence of taking supplemental food products with one or more added nutrients in the six-month period prior to the study. The intervention (12 months) consisted of two food supplements for ethical reason, one with a higher protein content, bean (bean-sorghum based) group (n=97) and a cereal (sorghum) group (n=104) both of which contained added energy- and micro- nutrients. Anthropometric and biochemical nutritional status indicators (stunting, wasting, underweight, skinfolds for fat and muscle protein reserves, and hemoglobin levels) were compared within and between the bean and the cereal groups pre- and post-intervention separately for children six to nine years and ten to 15 years. Findings – Older children (ten to 15 years) fared worse overall compared to those who were younger (six to nine years) children in anthropometric and protein status indicators both at baseline and post-intervention. Among children six to nine years, the mid arm circumference and blood hemoglobin levels improved significantly in both the bean and cereal groups (p < 0.01 and p < 0.05, respectively). Although the BMI for age z-score and the triceps skinfold decreased significantly in the bean group, the post-intervention subscapular skinfold (fat stores) was significantly higher for the bean group compared to the cereal group (p < 0.05). Among children ten to 15 years, both the bean and the cereal groups also showed improvement in mid arm circumference (p < 0.001), but only those in the bean group showed improvement in hemoglobin (p < 0.01) post-intervention. Originality/value – Similar significant nutritional status findings and trends were found for both food interventions and age within group pre- vs post-comparisons, except hemoglobin in the older children. Post-intervention hemoglobin levels for the type food supplement was higher for the “bean” vs the “cereal” food in the younger age group. The fact that all children, but especially those who were older were in poor nutritional status supports the need for nutrition intervention in conjunction with ARV treatment in children with HIV/AIDS, perhaps using a scaled up future approach to enhance desired outcomes.

PurposeThe purpose of this paper is to study the quality of porridge made from cereal legume composite flour and to compare with a porridge that it is traditionally eaten.Design/methodology/approachThe nutritional composition as well as protein, microbiological, and sensory quality of porridge from a sorghum bean composite flour was assessed and compared with sorghum porridge (SP) that is traditionally eaten in Botswana.FindingsResults indicated that the nutrient composition and the protein quality of the sorghum bean composite porridge were significantly higher than that of the SP. The majority of children and adults rated the sensory attributes of the sorghum composite porridge highly and adult consumers indicated willingness to buy it.Originality/valueThe study demonstrates that using traditionally consumed foods, which are culturally acceptable and low cost, such as sorghum and sugar beans, can improve nutritional and sensory attributes when composited. These composited foods can then be recommended as a sustainable supplementary food source to improve the nutritional status and health of vulnerable populations such as HIV+ children.

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