Browsing by Author "Griffiths, Jeffrey K."

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    Implementing a Cold-Chain System for Nutritional Assessment in Rural Uganda; Field Experiences from FtF Nutrition Innovation Lab Cohort Study
    (International Journal of Nutrition, 2018) Agaba, Edgar; Shrestha, Robin; Ghosh, Shibani; Griffiths, Jeffrey K.; Bashaasha, Bernard
    To elaborate on the procedures undertaken to establish blood draws and cold chain for nutrition assessments. Setting: A total of 5,044 birth cohort households were enrolled and assessed using household questionnaires, anthropometry, and blood sampling to assess nutritional issues and exposures to environmental contaminants. The challenge was to obtain, transport, process, store, and analyze tens of thousands of serum samples obtained in sites that were often difficult to reach. Approach: Before enrollment began, 24 healthcare facilities in the North and Southwest of Uganda were assessed for suitability as local nodes for processing and storage. Equipment needs included functional centrifuges, refrigeration, ice machines, and -20oC freezers. Other important physical infrastructure included the presence of backup power (generator or solar generated) in the event of electricity failure. Once samples were obtained, they were transported within 5 hours to the facility laboratories, where serum was separated and aliquoted into properly labelled storage tubes and then frozen. Relevant Changes: At community level, our team visited households or small group of household members close to their homes to reduce on travel time hence contributed to high retention rates. Our immediate testing for anemia and malaria results benefited enrollees and enhanced community acceptance. By using Village Health Teams (VHTs), we could accommodate household preferences for the timing of sample collection. Our engagement with phlebotomists transformed their role from a simple service into active team members. Lessons Learned: Our first lesson was that in our setting, the success of this nutrition biological sampling system required community engagement and acceptance. By combining an immediately actionable set of tests (for anemia and malaria), and visiting cohort households, we greatly enhanced the success of the system.
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    Reliability and validity of the center for epidemiologic studies-depression scaleinscreening for depression among HIV-infected and -uninfected pregnant women attending antenatal services in northern Uganda: a cross-sectional study
    (BMC Psychiatry, 2014) Natamba, Barnabas K.; Achan, Jane; Arbach, Angela; Oyok, Thomas O.; Ghosh, Shibani; Mehta, Saurabh; Stoltzfus, Rebecca J.; Griffiths, Jeffrey K.; Young, Sera L.
    Background: There are limited data on the prevalence and approaches to screening for depression among pregnant women living in resource poor settings with high HIV burden. Methods: We studied the reliability and accuracy of the Center for Epidemiologic Studies Depression (CES-D) scale in 123 (36 HIV-infected and 87 -uninfected) pregnant women receiving antenatal care at Gulu Regional Referral Hospital, Uganda. CES-D scores were compared to results from the psychiatrist-administered Mini-International Neuropsychiatric Interview (MINI) for current major depressive disorder (MDD), a “gold standard” for assessingdepression. We employed measures of internal consistency (Cronbach’s alpha), and criterion validity [Area Underthe Receiver Operating Characteristic Curve (AUROC), sensitivity (Se), specificity (Sp), and positive predictive value(PPV)] to evaluate the reliability and validity of the CES-D scale. Results: 35.8% of respondents were currently experiencing an MDD, as defined from outputs of the MINI-depression module. The CES-D had high internal consistency (Cronbach’s alpha = 0.92) and good discriminatory ability in detecting MINI-defined current MDDs (AUROC = 0.82). The optimum CES-D cutoff score for the identification of probable MDD was between 16 and 17. A CES-D cutoff score of 17, corresponding to Se, Sp, and PPV values of 72.7%, 78.5%, and 76.5%, is proposed for adoption in this population and performs well for HIV-infected and -uninfected women. Afteradjusting for baseline differences between the HIV subgroups (maternal age and marital status), HIV-infectedpregnant women scored 6.2 points higher on the CES-D than HIV-uninfected women (p = 0.032).Conclusions: The CES-D is a suitable instrument for screening for probable major depression among pregnant womenof mixed HIV status attending antenatal services in northern Uganda.
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    Unsafe Drinking Water Is Associated with Environmental Enteric Dysfunction and Poor Growth Outcomes in Young Children in Rural Southwestern Uganda
    (The American journal of tropical medicine and hygiene, 2018) Lauer, Jacqueline M.; Duggan, Christopher P.; Ausman, Lynne M.; Griffiths, Jeffrey K.; Webb, Patrick; Bashaasha, Bernard; Agaba, Edgar; Turyashemererwa, Florence M.; Ghosh, Shibani
    Environmental enteric dysfunction (EED), a subclinical disorder of the small intestine, and poor growth are associated with living in poor water, sanitation, and hygiene (WASH) conditions, but specific risk factors remain unclear. Nested within a birth cohort study, this study investigates relationships among water quality, EED, and growth in 385 children living in southwestern Uganda. Water quality wasassessed using a portable water quality testwhen children were 6 months, and safe water was defined as lacking Escherichia coli contamination. Environmental enteric dysfunction was assessed using the lactulose:mannitol (L:M) test at 12–16 months. Anthropometry and covariate data were extracted from the cohort study, and associations were assessed using linear and logistic regression models. Less than half of the households (43.8%) had safe water, and safe versus unsafe water did not correlate with improved versus unimproved water source. In adjusted linear regression models, children from households with safe water had significantly lower logtransformed (ln) L:M ratios (β: −0.22, 95% confidence interval (CI): −0.44, −0.00) and significantly higher length-for-age (β: 0.29, 95% CI: 0.00, 0.58) and weight-for-age (β: 0.20, 95% CI: 0.05, 0.34) Z-scores at 12–16 months. Furthermore, in adjusted linear regression models, ln L:M ratios at 12–16 months significantly decreased with increasing length-for-age Z-scores at birth, 6 months, and 9 months (β: −0.05,95%CI: −0.10, −0.004; β: −0.06,95%CI: −0.11, −0.006; and β: −0.05, 95%CI: −0.09, −0.005, respectively). Overall, our data suggest that programs seeking to improve nutrition should address poor WASH conditions simultaneously, particularly related to household drinking water quality.