An Assessment of the Relationship between Anthropometric Parameters and Blood Pressure among Polokwane Private School Children

Associations between ocular biometry and anthropometric measurements among Sudanese adults

Correlations between body parameters and ocular parameters are essential to emphasize the diagnosis and management of ocular and systemic diseases. This study aimed to assess the associations between ocular parameters and anthropometric parameters in adult Sudanese individuals. A cross-sectional hospital-based study was conducted with 250 young volunteers (250 eyes) at Al-Neelain University Eye Hospital from January to June 2019. Clinical examinations included demographic data, medical history, visual acuity assessment, refractive error, and anterior corneal power (ACP) measurement using an autorefkeratometer and ocular biometry via A-scan ultrasound. Anthropometric assessments included height (measured using a wall-mounted metric ruler), weight (measured with a digital scale), and body mass index (BMI), calculated as weight divided by height squared. Data analysis was performed using SPSS version 25. There were 64 (25.6%) men and 186 (74.4%) women. The mean age was 21.29 ± 1.18 years. The mean body height, weight, and BMI were 1.62 ± 0.07 m, 58.56 ± 11.93 kg, and 22.38 ± 4.80 kg/m2, respectively. The mean axial length (AL), ACP, anterior chamber depth (ACD), and vitreous depth (VD) were 22.81 ± 0.74 mm, 43.30 ± 1.40 D, 3.20 ± 0.33 mm, and 15.97 ± 0.67 mm, respectively. Body height was positively correlated with AL, ACD, and VD and negatively correlated with ACP (P < 0.001). Body weight was significantly positively correlated with AL and VD (P < 0.05). BMI was not correlated with any ocular parameters (P > 0.05). The study concluded that taller subjects had significantly longer axial lengths, deeper vitreous cavities, and flatter corneas. However, body weight was positively associated with axial length and vitreous depth.

Prevalence of Hypertension and Its Associated Factors among Adolescents in Eastern Sudan: A Community-Based Study

BACKGROUND

Elevated blood pressure, or hypertension, is one of the main health problems among adolescents globally. However, there are limited data on hypertension among adolescents in Sudan. This survey aimed to investigate the prevalence of elevated blood pressure/hypertension and associated factors among adolescents in Gadarif City, Sudan.

METHODS

A community-based cross-sectional survey was conducted during a three-month period (August to October 2023) in Gadarif City, Eastern Sudan. A face-to-face interview questionnaire was used to collect sociodemographic information. Adolescents' anthropometric (weight and height) measurements were taken, and blood pressure was measured. Multivariate binary and linear regression analyses were performed to analyze the data.

RESULTS

A total of 384 adolescents (178 [46.4%] boys and 206 [53.6%] girls) were included in the study. The median (interquartile range, IQR) of the age was 14.0 (12.1-16.1) years, and that of the body mass index (BMI) was 16.9 (15.2-20.0) kg/m2. Thirty-four (8.9%) adolescents had hypertension/elevated blood pressure (≥95th percentile). After adjusting for confounders, multivariable binary regression analysis showed that age (adjusted odds ratio [AOR], 1.20; 95% confidence interval [CI], 1.03-1.42) and BMI (AOR, 1.12; 95% CI, 1.04-1.20) were associated with hypertension.

CONCLUSION

Approximately one in ten adolescents in Eastern Sudan was hypertensive. Adolescents with higher age and BMI were at higher risk for hypertension. Maintaining a healthy BMI during adolescence is recommended to promote adolescents' health.

Prevalence and factors associated with hypertension among adolescents in Sudan: a cross-sectional school-based study

OBJECTIVES

There is an increasing rate of elevated blood pressure, or hypertension, in children and adolescents worldwide, including Sub-Saharan Africa (SSA). Only a few data on adolescent hypertension in SSA, including Sudan, have been published. The aim of the present study was to investigate the prevalence and associated factors of hypertension among adolescent schoolchildren (within the ages of 10 to 19 years) in Sudan.

DESIGN

A cross-sectional school-based study was conducted from June to September 2022.

SETTINGS

Six randomly selected schools in Almatamah, River Nile State, Sudan.

PARTICIPANTS

Adolescent schoolchildren (within the ages of 10 to 19 years).

MAIN OUTCOME MEASURES

Sociodemographic information. Anthropometric and blood pressure measurements were performed in accordance with the standard procedures. An adjusted logistic regression analysis was performed.

RESULTS

Of the 384 enrolled adolescents, 166 (43.2%) and 218 (56.8%) were boys and girls, respectively. The median (IQR) age and body mass index (BMI) were 15.2 years (14.0‒16.4 years) and 18.5 kg/m2 (16.4‒21.5 kg/m2), respectively. Of the 384 adolescents, 240 (62.5%) and 255 (66.4%) had educated mothers and fathers (≥secondary), respectively. 38 adolescents (9.9%) had hypertension (≥95th percentile). The multivariable logistic regression analysis revealed that age, sex and maternal educational level were not associated with hypertension. Paternal educational level according to secondary education attainment (adjusted OR (AOR), 2.72; 95% CI 1.36‒5.46) and increasing BMI (AOR, 1.12; 95% CI 1.02‒1.20) were associated with hypertension.

CONCLUSION

1 in 10 adolescents in northern Sudan was hypertensive. Low paternal educational level and increasing BMI were significantly associated with hypertension. The introduction of interventional nutritional programmes at early ages is needed to ensure that adolescents are healthy in their present and later lives. To sustain such programmes, involving all educational parties at early stage is essential.

Detecting and Managing Childhood Onset Hypertension in Africa: A Call to Action

PURPOSE OF REVIEW

To review recent evidence on childhood hypertension across Africa, identifying knowledge gaps, challenges and priorities, and highlight clinical perspectives in managing primary hypertension.

RECENT FINDINGS

Only 15 of the 54 African countries reported on absolute blood pressure (BP) measures, elevated BP, pre- and/or hypertension. The reported hypertension prevalence ranged between 0.0 and 38.9%, while elevated BP and/or pre-hypertnesion ranged from 2.7 to 50.5%. Childhood BP nomograms are lacking across Africa and the rates of hypertension were based on guidelines developed in countries with the lowest to no number of children from African ancestry. The recent studies across Africa also showed little to no detail when reporting BP specific methodology. No recent data informing the use or effectiveness of antihypertensive agents in children and adolesents are available. Childhood hypertension is on the rise, while data from Africa remains vastly under-represented. Collaborative research, resources, and policies need to be strengthened in addressing the growing public health concern of childhood onset hypertension on this continent.

Paediatric Hypertension in Africa: A Systematic Review and Meta-Analysis

BACKGROUND

The burden of cardiovascular disease (CVD) and hypertension is rapidly increasing in low- and middle-income countries. This is evident not only in adults, but also in children. Recent estimates of prevalence in children are lacking, particularly in Africa. As such, we conducted a systematic review and meta-analysis to provide updated estimates of paediatric hypertension in Africa.

METHODS

We searched PubMed and EBSCO to identify articles published from January 2017 to November 2020. Studies were assessed for quality. We combined results for meta-analyses using a random effects model (Freeman-Tukey arcsine transformation). Heterogeneity was quantified using the I² statistic.

FINDINGS

In the narrative synthesis of 53 studies, publication bias was low for 28, moderate for 24, and high for one study. Hypertension prevalence ranged substantially (0·2%-38·9%). Meta-analysis included 41 studies resulting in data on 52918 participants aged 3 to 19 years from ten countries. The pooled prevalence for hypertension (systolic/diastolic BP≥95th percentile) was 7·45% (95%CI 5·30-9·92, I²=98.96%), elevated blood pressure (BP, systolic/diastolic BP≥90th percentile and <95th percentile) 11·38% (95%CI 7·94-15·33, I²=98.97%) and combined hypertension/elevated BP 21·74% (95%CI 15·5-28·69, I²=99.48%). Participants categorized as overweight/with obesity had a higher prevalence of hypertension (18·5% [95%CI 10·2-28·5]) than those categorized as underweight/normal (1·0% [95%CI 0·1-2·6], 4·8% [95%CI 2·9-7·1], p<0·001). There were significant differences in hypertension prevalence when comparing BP measurement methods and classification guidelines.

INTERPRETATION

Compared to a previous systematic review conducted in 2017, this study suggests a continued increase in prevalence of paediatric hypertension in Africa, and highlights the potential role of increasing overweight/obesity.

FUNDING

This research was funded in part by the Wellcome Trust [Grant number:214082/Z/18/Z]. LJW and SAN are supported by the DSI-NRF Centre of Human Development at the University of the Witwatersrand.

"Selected Papers from the 2nd Ellisras Longitudinal Study and Other Non-Communicable Diseases Studies International Conference" Special Issue Editorial

Epidemics of non-communicable diseases (NCDs) are presently emerging and on the increase in South Africa. It is increasingly recognized that the occurrence of adult chronic disease are influenced by factors operating from childhood, which are sustained throughout the individual’s life course. Increased risk may start in infancy or even before birth and will continue to be influenced by health related behavior during adulthood. The academic level of people in the community influence the level of their health status. Commitment to the promotion of health through prevention, education, and suitable management is the building block for creating a healthy society. The community must make strides to shift from traditional knowledge and medication, and seek new innovative ways of addressing issues facing the population with regard to obesity, overweight, hypertension health, smoking cessation, alcohol abuse, and low physical activity in line with a healthy living lifestyle. The NCDs pose health problems in South Africa and deserve more attention. Poor control of obesity, hypertension, and diabetes, to name just a few, only adds to the current problems. The South African government and the business sector of South Africa should provide safe walking/riding trails in the cities and in rural area to combat emerging NCDs that are killing our community members indiscriminately without considering race, gender, age, and place of residence. Compulsory introduction of physical education lessons to all public schools cannot be over emphasized in the current escalating NCD situation in South Africa.