Medicine and Health Sciences Commons^™

The Effects Of Height-For-Age And Hiv On Cognitive Development Of School-Aged Children In Nairobi, Kenya: A Structural Equation Modelling Analysis, Rachel Maina, Jia He, Amina Abubakar, Miguel Perez-Garcia, Manasi Kumar, Jelte M. Wicherts

Brain and Mind Institute

Background: Empirical evidence indicates that both HIV infection and stunting impede cognitive functions of school-going children. However, there is less evidence on how these two risk factors amplify each other’s negative effects. This study aimed to examine the direct effects of stunting on cognitive outcomes and the extent to which stunting (partially) mediates the effects of HIV, age, and gender on cognitive outcomes.

Methodology: We applied structural equation modelling to cross-sectional data from 328 children living with HIV and 260 children living without HIV aged 6–14 years from Nairobi, Kenya to test the mediating effect of stunting and predictive …

Performance Of Machine Learning Classifiers In Classifying Stunting Among Under-Five Children In Zambia, Obvious Nchimunya Chilyabanyama, Roma Chilengi, Roma Chilengi, Michelo Simuyandi, Caroline C. Chisenga, Masuzyo Chirwa, Kalongo Hamusonde, Rakesh Kumar Saroj, Najeeha Talat Iqbal, Innocent Ngaruye

Department of Paediatrics and Child Health

Stunting is a global public health issue. We sought to train and evaluate machine learning (ML) classification algorithms on the Zambia Demographic Health Survey (ZDHS) dataset to predict stunting among children under the age of five in Zambia. We applied Logistic regression (LR), Random Forest (RF), SV classification (SVC), XG Boost (XgB) and Naïve Bayes (NB) algorithms to predict the probability of stunting among children under five years of age, on the 2018 ZDHS dataset. We calibrated predicted probabilities and plotted the calibration curves to compare model performance. We computed accuracy, recall, precision and F1 for each machine learning algorithm. …

Bile Acid Profiling Reveals Distinct Signatures In Undernourished Children With Environmental Enteric Dysfunction, Xueheng Zhao, Kenneth D R. Setchell, Rong Huang, Indika Mallawaarachchi, Lubaina Ehsan, Edward Dobrzykowski Iii, Junfang Zhao, Sana Syed, Najeeha Talat Iqbal, Junaid Iqbal, Kamran Sadiq, Sheraz Ahmed, Syed Asad Ali

Department of Paediatrics and Child Health

Background: Intestinal inflammation and malabsorption in environmental enteric dysfunction (EED) are associated with early childhood growth faltering in impoverished settings worldwide.
Objectives: The goal of this study was to identify candidate biomarkers associated with inflammation, EED histology, and as predictors of later growth outcomes by focusing on the liver-gut axis by investigating the bile acid metabolome.
Methods: Undernourished rural Pakistani infants (n = 365) with weight-for-height Z score (WHZ) < -2 were followed up to the age of 24 mo and monitored for growth, infections, and EED. Well-nourished local children (n = 51) were controls, based on consistent WHZ > 0 and height-for-age Z score (HAZ) > -1 on 2 consecutive visits at 3 and 6 mo. Serum bile acid (sBA) profiles were measured by tandem MS at the ages of 3-6 …

Effectiveness Of Unconditional Cash Transfers Combined With Lipid-Based Nutrient Supplement And/Or Behavior Change Communication To Prevent Stunting Among Children In Pakistan: A Cluster Randomized Controlled Trial, Sajid Bashir Soofi, Shabina Ariff, Gul Nawaz Khan, Atif Habib, Sumra Kureishy, Yasir Ihtesham, Masawar Hussain, Arjumand Rizvi, Muhammad Sajid, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Background: In Pakistan, the prevalence of stunting among children under-five years has remained above WHO critical thresholds (≥30%) over the last two decades.
Objective: We hypothesized that an unconditional cash transfer (UCT) combined with lipid-based nutrient supplement (LNS) and/or social and behavior change communication (SBCC) will prevent stunting among children 6-23 months of age.
Design: This was a four-arm, community-based cluster randomized controlled trial conducted in the district of Rahim Yar Khan, Pakistan. A total of 1729 children (UCT n = 434); (UCT+SBCC n = 433); (UCT+LNS n = 430) and (UCT+LNS+SBCC n = 432) were enrolled at 6 months …

The Double Burden Of Malnutrition And Associated Factors Among South Asian Adolescents: Findings From The Global School-Based Student Health Survey, Sara Estecha Querol, Romaina Iqbal, Laura Kudrna, Lena Al-Khudairy, Paramijit Gill

Community Health Sciences

The health and nutrition of the global adolescent population have been under-researched, in spite of its significant size (1.2 billion). This study investigates the prevalence and associated factors of malnutrition (stunting, thinness and overweight) among adolescents living in South Asia. The sample analysed was 24,053 South Asian schooled adolescents aged 12-15 years that participated in the cross-sectional Global School-Based Student Health Survey (GSHS) between 2009 and 2016. The prevalence of stunting, thinness and overweight was calculated using the World Health Organization (WHO) Child Growth Reference 2007. Associations between the three forms of malnutrition and their possible associated factors were assessed …

Effectiveness Of Specialized Nutritious Foods And Social And Behavior Change Communication Interventions To Prevent Stunting Among Children In Badakhshan, Afghanistan: Protocol For A Quasi-Experimental Study, Sajid Bashir Soofi, Gul Nawaz Khan, Shabina Ariff, Arjumand Rizvi, Mohammad Asif Hussainyar, Cecilia Garzon, Martin Ahimbisibwe, Rafiullah Sadeed, Ahmad Reshad

Department of Paediatrics and Child Health

Stunting predominantly occurs during the first 1000 days of life and continues to the age of five years. We will aim to assess the effectiveness of specialized nutritious foods (SNF)and social and behavior change communication (SBCC) strategies during the first 1000 days of life to prevent stunting among children in two rural districts of Badakhshan, Afghanistan. This will be a quasi-experimental pre-post study with the control group utilizing qualitative and quantitative methods. Before launching the program, formative research will be conducted on the acceptability, appropriate use and SBCC strategies needed to support the introduction of intervention package. Repeated cross-sectional baseline …

Adolescent Undernutrition In South Asia: A Scoping Review, Sara Estecha Querol, Paramjit Gill, Romaina Iqbal, Maartje Kletter, Neslihan Ozdemir, Lena Al-Khudairy

Community Health Sciences

Undernutrition is a growing public health challenge affecting growth and development during adolescence in many low- and middle-income countries. This scoping review maps the evidence on adolescent undernutrition (stunting, thinness and micronutrient deficiencies) in South Asia and highlights gaps in knowledge. Using Arksey and O'Malley's framework and the Joanna Briggs Institute Reviewers' Manual, the search included electronic bibliographic databases (Medline (OVID), Embase, Cochrane Library, Web of Science, CINAHL, PsycInfo, and Scopus) as well as various grey literature sources published up to March 2019. In total, 131 publications met the inclusion criteria of this review. All the included evidence used quantitative …

Preconceptional Lipid-Based Nutrient Supplementation In 2 Low-Resource Countries Results In Distinctly Different Igf-1/Mtor Placental Responses, Marisol Castillo-Castrejon, Ivana V. Yang, Elizabeth J. Davidson, Sarah J. Borengasser, Purevsuren Jambal, Jamie Westcott, Jennifer F. Kemp, Ana Garces, Sumera Aziz Ali, Sarah Saleem

Community Health Sciences

Background: Preconceptional maternal small-quantity lipid-based nutrient supplementation (SQLNS) improved intrauterine linear growth in low-resource countries as demonstrated by the Women First Preconception Maternal Nutrition Trial (WF). Fetal growth is dependent on nutrient availability and regulated by insulin-like growth factor 1 (IGF-1) through changes in placental transfer capacity, mediated by the mechanistic target of rapamycin (mTOR) pathway.
Objectives: Our objective was to evaluate the role of placental mTOR and IGF-1 signaling on fetal growth in women from 2 low-resource countries with high rates of stunting after they received preconceptional SQLNS.
Methods: We studied 48 women from preconception through delivery who were …

Drivers Of Stunting Reduction In Peru: A Country Case Study, Luis Huicho, Elisa Vidal-Cárdenas, Nadia Akseer, Samanpreet Brar, Kaitlin Conway, Muhammad Islam, Elisa Juarez, Aviva Rappaport, Hana Tasic, Tyler Vaivada, Jannah Wigle, Zulfiqar Ahmed Bhutta

Woman and Child Health

Background: Peru reduced its under-5 child stunting prevalence notably from 31.3% in 2000 to 13.1% in 2016.
Objectives: We aimed to study factors and key enablers of child stunting reduction in Peru from 2000-2016.
Methods: Demographic and Health Surveys were used to conduct descriptive analyses [height-for-age z scores (HAZ) means and distributions, equity analysis, predicted child growth curves through polynomial regressions] and advanced regression analyses. An ecological (at department level) multilevel regression analysis was conducted to identify the major predictors of stunting decline from 2000 to 2016, and Oaxaca-Blinder decomposition was conducted to identify the relative contribution of each factor …

Stunting In Childhood: An Overview Of Global Burden, Trends, Determinants, And Drivers Of Decline, Tyler Vaivada, Nadia Akseer, Selai Akseer, Ahalya Somaskandan, Marianne Stefopulos, Zulfiqar Ahmed Bhutta

Woman and Child Health

Background: Progress has been made worldwide in reducing chronic undernutrition and rates of linear growth stunting in children under 5 y of age, although rates still remain high in many regions. Policies, programs, and interventions supporting maternal and child health and nutrition have the potential to improve child growth and development.
Objective: This article synthesizes the available global evidence on the drivers of national declines in stunting prevalence and compares the relative effect of major drivers of stunting decline between countries.
Methods: We conducted a systematic review of published peer-reviewed and gray literature analyzing the relation between changes in key …

Specialized Nutritious Food Combined With Cash Transfers And Social And Behavior Change Communication To Prevent Stunting Among Children Aged 6 To 23 Months In Pakistan: Protocol For A Cluster Randomized Controlled Trial, Gul Nawaz Khan, Sumra Kureishy, Shabina Ariff, Atif Habib, Asra Abeer Usmani, Areeba Mubarik, Masawar Hussain, Naveed Akbar, Pablo Rodriguez De Castro, Alba Cecilia Garzon, Saskia De Pee, Sajid Bashir Soofi

Department of Paediatrics and Child Health

Background: In Pakistan, the prevalence of stunting in children younger than 5 years has remained above global critical levels over the past two decades, with the stunting rate being 40.2% in 2018. Children living in rural areas and in the poorest households suffer the most from stunting across the country-43.2% in rural areas and 51.4% in the lowest wealth quintile. As a continuing public health concern, it is essential that stunting prevention is a national priority in order to ensure human capital development, especially among the poorest households.
Objective: The primary objective of this study is to determine the effect …

Effect Of Lipid-Based Nutrient Supplement-Medium Quantity On Reduction Of Stunting In Children 6-23 Months Of Age In Sindh, Pakistan: A Cluster Randomized Controlled Trial, Gul Nawaz Khan, Sumra Kureishy, Shabina Ariff, Arjumand Rizvi, Muhammad Sajid, Cecilia Garzon, Ali Ahmad Khan, Saskia De Pee, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Background: Chronic childhood malnutrition, or stunting, remains a persistent barrier to achieve optimal cognitive development, child growth and ability to reach full potential. Almost half of children under-five years of age are stunted in the province of Sindh, Pakistan.
Objective: The primary objective of this study was to test the hypothesis that the provision of lipid-based nutrient supplement-medium-quantity (LNS-MQ) known as Wawamum will result in a 10% reduction in risk of being stunted at the age of 24 months in the intervention group compared with the control group.
Design: A cluster randomized controlled trial was conducted in Thatta and Sujawal …

Food Supplements To Reduce Stunting In Pakistan: A Process Evaluation Of Community Dynamics Shaping Uptake, Shehla Zaidi, Jai K. Das, Gul Nawaz Khan, Rabia Najmi Taha, Mashal Murad Shah, Sajid Bashir Soofi

Community Health Sciences

Background: There is an increasing interest in use of food supplements to prevent childhood stunting, however the evidence on the process indicators is scarce. We in this study explore the barriers to the effective implementation of food supplementation programs and the possible mitigation strategies which can guide the design of future programs.
Methods: We undertook a process evaluation of a stunting prevention food supplementation pilot program in rural Pakistan that distributed Wheat Soy Blend (WSB) to pregnant & lactating women, and Lipid-based Nutrient Supplement (LNS) and micronutrient powder (MNP) to < 5 years children. We used a mixed methods approach through a quantitative survey of 800 households and conducted 18 focused group discussion (FGDs) (with male and female caregivers), 4 FGDs (with Community Health Workers (CHWs)) and 22 key informant interviews (with district stakeholders) to evaluate the community side factors affecting uptake through five parameters: value, acceptability, receipt of supplement, usage and correct dosage.
Results: The findings show that proportionately few beneficiaries consumed the …

Mainstreaming Nutrition Services: Stabilization Centers And Outpatient Therapeutic Program Centers, Ashar Muhammad Malik

Community Health Sciences

No abstract provided.

Determinants Of Linear Growth Faltering Among Children With Moderate-To-Severe Diarrhea In The Global Enteric Multicenter Study, Rebecca L. Brander, Patricia B. Pavlinac, Judd L. Walson, Grace C. John-Stewart, Marcia R. Weaver, Abu S. G Faruque, Anita K. M. Zaidi, Dipika Sur, Samba O. Sow, M Jahangir Hossain

Department of Paediatrics and Child Health

Background: Moderate-to-severe diarrhea (MSD) in the first 2 years of life can impair linear growth. We sought to determine risk factors for linear growth faltering and to build a clinical prediction tool to identify children most likely to experience growth faltering following an episode of MSD.
Methods: Using data from the Global Enteric Multicenter Study of children 0-23 months old presenting with MSD in Africa and Asia, we performed log-binomial regression to determine clinical and sociodemographic factors associated with severe linear growth faltering (loss of ≥ 0.5 length-for-age z-score [LAZ]). Linear regression was used to estimate associations with ΔLAZ. A …

Nash-Wo-Numa (Childhood Growth & Development) Study Protocol: Factors That Impact Linear Growth In Children 9 To 15 Years Of Age In Matiari, Pakistan, Susan C. Campisi, Yaqub Wasan, Sajid Bashir Soofi, Suneeta Monga, Daphne J. Korczak, Wendy Lou, Olle Soder, Ashley Vandermorris, Khadija N Humayun, Ayesha Mian, Peter Szatmari, Zulfiqar Ahmed Bhutta

Department of Paediatrics and Child Health

Introduction: Adolescence is a time of significant physical and emotional change, and there is emerging concern that adolescents living in low- and middle-income countries (LMIC) may face substantial challenges in relation to linear growth and mental health. Data on the global burden of stunting after 5 years of age are limited, but estimates suggest up to 50 per cent of all adolescents in some LMIC are stunted. Additionally, many LMIC lack robust mental health care delivery systems. Pakistan has one of the world's largest populations of adolescents (10 to 19 years) at approximately 40 million. The Nash-wo-Numa study's primary objective …

Modelling Stunting In List: The Effect Of Applying Smoothing To Linear Growth Data, Simon Cousens, Jamie Perin, Parul Christian, Lee Shu-Fune Wu, Sajid Bashir Soofi, Zulfiqar Ahmed Bhutta, Claudio Lanata, Richard L. Guerrant, Aldo A. M. Lima, Kåre Mølbak

Department of Paediatrics and Child Health

Background: The Lives Saved Tool (LiST) is a widely used resource for evidence-based decision-making regarding health program scale-up in low- and middle-income countries. LiST estimates the impact of specified changes in intervention coverage on mortality and stunting among children under 5 years of age. We aimed to improve the estimates of the parameters in LiST that determine the rate at which the effects of interventions to prevent stunting attenuate as children get older.
Methods: We identified datasets with serial measurements of children's lengths or heights and used random effects models and restricted cubic splines to model the growth trajectories of …

Causal Pathways From Enteropathogens To Environmental Enteropathy: Findings From The Mal-Ed Birth Cohort Study, Margaret N. Kosek, Zulfiqar Ahmed Bhutta, Anita K. M. Zaidi, Imran Ahmed, Syed Asad Ali, Muneera Rasheed, Sajid Bashir Soofi, Ali Turab, Didar Alam, Shahida Qureshi

Department of Paediatrics and Child Health

Background: Environmental enteropathy (EE), the adverse impact of frequent and numerous enteric infections on the gut resulting in a state of persistent immune activation and altered permeability, has been proposed as a key determinant of growth failure in children in low- and middle-income populations. A theory-driven systems model to critically evaluate pathways through which enteropathogens, gut permeability, and intestinal and systemic inflammation affect child growth was conducted within the framework of the Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) birth cohort study that included children from eight countries. …

A Mixed Methods Study To Assess The Effectiveness Of Food-Based Interventions To Prevent Stunting Among Children Under-Five Years In Districts Thatta And Sujawal, Sindh Province, Pakistan: Study Protocol, Sumra Kureishy, Gul Nawaz Khan, Shabina Arrif,, Khizar Ashraf, Angela Cespedes, Atif Habib, Imtiaz Hussain, Asmat Ullah, Ali Turab, Imran Ahmed, Shehla Zaidi, Sajid Bashir Soofi

Department of Paediatrics and Child Health

Background: Maternal and child malnutrition is widely prevalent in low and middle income countries. In Pakistan, widespread food insecurity and malnutrition are the main contributors to poor health, low survival rates and the loss of human capital development. The nutritional status trends among children exhibit a continuous deteriorating with rates of malnutrition exceeding the WHO critical threshold. With the high prevalence of maternal and child malnutrition, it is important to identify effective preventative approaches, especially for reducing stunting in children under-five years of age. The primary aim of this study is to assess the effectiveness of food-based interventions to …