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Social Influences on Drinking Trajectories From Adolescence to Young Adulthood in an Urban Minority Sample
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OBJECTIVE: Research on the heterogeneity in drinking patterns of urban minorities within a socioecological framework is rare. The purpose of this study was to explore multiple, distinct patterns of drinking from adolescence to young adulthood in a sample of urban minority youth and to examine the influence of neighborhood, family, and peers on these trajectories. METHOD: Data are from a longitudinal study of 584 (56% male) primarily Black (87%) youth who were first sampled in childhood based on their residence in low-income neighborhoods in Baltimore City and followed up annually through age 26. Data were analyzed using group-based trajectory modeling and multinomial logistic regression. RESULTS: Modeling revealed six trajectories from ages 14 to 26: abstainer, experimenter, adult increasing, young adult increasing, adolescent limited, and adolescent increasing. Neighborhood disadvantage was a risk factor for drinking regardless of the timing of onset. Perceptions of availability, peer drinking, and parental approval for drinking were risk factors for underage drinking trajectories, whereas parental supervision was a significant protective factor. Positive social activities in neighborhoods was protective against increased drinking, whereas a decline in perceptions of peer drinking was associated with adolescent-limited drinking. CONCLUSIONS: Our findings uniquely highlight the importance of developing interventions involving parents for urban minority youth for whom family is particularly relevant in deterring underage drinking. Perhaps most importantly, our data suggest that interventions that support positive social activities in disadvantaged neighborhoods are protective against adolescent drinking and altering perceptions of peer drinking may reduce adolescent drinking among low-income, urban minority youth.
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MPRC People
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Kerry Green, Ph.D.
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Kerry Green Publications
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Pharmaceuticals, herbicides, and disinfectants in agricultural water sources
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Agricultural water withdrawals account for the largest proportion of global freshwater use. Increasing municipal water demands and droughts are straining agricultural water supplies. Therefore, alternative solutions to agricultural water crises are urgently needed, including the use of nontraditional water sources such as advanced treated wastewater or reclaimed water, brackish water, return flows, and effluent from produce processing facilities. However, it is critical to ensure that such usage does not compromise soil, crop, and public health. Here, we characterized five different nontraditional water types (n = 357 samples) for the presence of pharmaceuticals, herbicides, and disinfectants using ultra-high-pressure liquid chromatography tandem mass spectrometry based method (UPLC-MS/MS). We then evaluated whether the levels of these contaminants were influenced by season. The highest level of herbicides (atrazine) was detected in untreated pond water (median concentration 135.9 ng/L). Reclaimed water had the highest levels of antibiotics and stimulants including azithromycin (215 ng/L), sulfamethoxazole (232.1 ng/L), and caffeine (89.4 ng/L). Produce processing plant water also tended to have high levels of atrazine (102.7 ng/L) and ciprofloxacin (80.1 ng/L). In addition, we observed seasonal variability across water types, with the highest atrazine concentrations observed during summer months, while the highest median azithromycin concentrations were observed in reclaimed water during the winter season. Further studies are needed to evaluate if economically feasible on-farm water treatment technologies can effectively remove such contaminants from nontraditional irrigation water sources.
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MPRC People
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Amir Sapkota, Ph.D.
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Amir Sapkota Publications
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An empirical approach based on quantile regression for estimating citation ageing
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An aspect of citation behavior, which has received longstanding attention in research, is how articles’ received citations evolve as time passes since their publication (i.e., citation ageing). Citation ageing has been studied mainly by the formulation and fit of mathematical models of diverse complexity. Commonly, these models restrict the shape of citation ageing functions and explicitly take into account factors known to influence citation ageing. An alternative—and less studied—approach is to estimate citation ageing functions using data-driven strategies. However, research following the latter approach has not been consistent in taking into account those factors known to influence citation ageing. In this article, we propose a model-free approach for estimating citation ageing functions which combines quantile regression with a non-parametric specification able to capture citation inflation. The proposed strategy allows taking into account field of research effects, impact level effects, citation inflation effects and skewness in the distribution of cites effects. To test our methodology, we collected a large dataset consisting of more than five million citations to 59,707 research articles spanning 12 dissimilar fields of research and, with this data in hand, tested the proposed strategy.
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MPRC People
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Sebastian Galiani, Ph.D.
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Sebastian Galiani Publications
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The Eighteen of 1918–1919: Black Nurses and the Great Flu Pandemic in the United States
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This article examines the role of Black American nurses during the 1918–1919 influenza pandemic and the aftermath of World War I. The pandemic caused at least 50 million deaths worldwide and 675 000 in the United States. It occurred during a period of pervasive segregation and racial violence, in which Black Americans were routinely denied access to health, educational, and political institutions. We discuss how an unsuccessful campaign by Black leaders for admission of Black nurses to the Red Cross, the Army Nurse Corps, and the Navy Nurse Corps during World War I eventually created opportunities for 18 Black nurses to serve in the army during the pandemic and the war’s aftermath. Analyzing archival sources, news reports, and published materials, we examine these events in the context of nursing and early civil rights history. This analysis demonstrates that the pandemic incrementally advanced civil rights in the Army Nurse Corps and Red Cross, while providing ephemeral opportunities for Black nurses overall. This case study reframes the response to epidemics and other public health emergencies as potential opportunities to advance health equity. In 1918, Aileen Cole and Clara Rollins ached to become Red Cross war nurses. 1 Cole, aged 24 years, had recently passed her registration exams, and Rollins, 34, had years of nursing experience. 2 The two boarded with other nurses in a Washington, DC, brick row house near Freedmen’s Hospital, where they had all graduated from the rigorous nurse training school. The Red Cross had enrolled Cole and Rollins on paper, but had done nothing else: the US Army and Navy, for which the Red Cross served as the official recruiter, did not accept Black nurses. 3 In October, the influenza pandemic brought change. The Red Cross called up Cole, Rollins, and several other Black nurses for civilian duty, and sent them to West Virginia to battle pandemic influenza. 4 This 1918–1919 pandemic was responsible for at least 50 million deaths worldwide and 675 000 in the United States. 5 It also created opportunities for previously excluded Black nurses, including the first 18 to serve in the Army Nurse Corps (ANC) between December 1918 and August 1919. 6 Although Black nurses’ roles in World War I and the pandemic have been noted by numerous historians, this article represents the first effort to move these nurses from periphery to center, and to critically analyze their struggle to serve as a seminal episode in the long and ongoing movement for civil rights and racial health equity. 7 Using archival materials, news reports, census records, and published literature, we highlight how Black nurses fulfilled a critical need for skilled care during the pandemic and the war’s aftermath, but received little recognition. We also show how nurses and Black community leaders viewed this service as a political act. We present this story as a historical case study of nursing and racism in a public health emergency, while raising transhistorical questions: Do public health emergencies spur advancements in health equity? Or do they merely allow exploitation of already-marginalized persons? Although a single case study cannot offer definitive answers, it can provide valuable insights.
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Retired Persons
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Marian Moser Jones, Ph.D.
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Marion Moser Jones Publications
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The consequences of foster care versus institutional care in early childhood on adolescent cardiometabolic and immune markers: Results from a randomized controlled trial
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OBJECTIVE: Children exposed to institutional rearing often exhibit problems across a broad array of developmental domains. We compared the consequences of long-term, high-quality foster care versus standard institution-based care, which began in early childhood on cardiometabolic and immune markers assessed at the time of adolescence. METHODS: The Bucharest Early Intervention Project is a longitudinal investigation of children institutionalized during early childhood (ages 6 to 30 months at baseline) who were subsequently randomized to either high-quality foster care or continued institutional care. At the age of 16 years, 127 respondents participated in a biomarker collection protocol, including 44 institutionalized children randomly assigned to receive care as usual, 41 institutionalized children randomized to be removed from institutional care and placed in high-quality foster care in infancy, and a control group of 42 demographically matched children raised in biological families. Outcomes included body mass index (BMI), systolic and diastolic blood pressure, C-reactive protein, interleukin (IL)-6, IL-8, IL-10, tumor necrosis factor α, glycosylated hemoglobin A1c, and Epstein-Barr virus antibody titers. RESULTS: Early institutional rearing was not associated with differences in cardiometabolic or immune markers. Randomization to foster care and age of placement into foster care were also unrelated to these markers, with the exception of BMI z-score, where children assigned to care as usual had lower BMI z-scores relative to children assigned to foster care (-0.23 versus 0.08, p = .06), and older age at placement was associated with lower BMI (β = -0.07, p = .03). CONCLUSIONS: The impact of institutional rearing on measures of cardiometabolic health and immune system functioning is either absent or not evident until later in development. These findings provide new insights into the biological embedding of adversity and how it varies developmentally and across regulatory systems and adversity type.
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Retired Persons
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Natalie Slopen, Sc.D.
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Natalie Slopen Publications
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Flies Without Borders - Lessons from Chennai on Improving India's Municipal Public Health Services
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India’s cities face key challenges to improving public health outcomes. First, unequally distributed public resources create insanitary conditions, especially in slums – threatening everyone’s health, as suggested by poor child growth even amongst the wealthiest. Second, devolving services to elected bodies works poorly for highly technical services like public health. Third, services are highly fragmented. This paper examines the differences in the organisation and management of municipal services in Chennai and Delhi, two cities with sharply contrasting health indicators. Chennai mitigates these challenges by retaining professional management of service delivery and actively serving vulnerable populations − while services in Delhi are quite constrained. Management and institutional issues have received inadequate attention in the public health literature on developing countries, and the policy lessons from Chennai have wide relevance.
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Monica Das Gupta, Ph.D.
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Monica Das Gupta Publications
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Using Google Street View to examine associations between built environment characteristics and U.S. health outcomes
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Neighborhood attributes have been shown to influence health, but advances in neighborhood research has been constrained by the lack of neighborhood data for many geographical areas and few neighborhood studies examine features of nonmetropolitan locations. We leveraged a massive source of Google Street View (GSV) images and computer vision to automatically characterize national neighborhood built environments. Using road network data and Google Street View API, from December 15, 2017-May 14, 2018 we retrieved over 16 million GSV images of street intersections across the United States. Computer vision was applied to label each image. We implemented regression models to estimate associations between built environments and county health outcomes , controlling for county-level demographics, economics, and population density . At the county level, greater presence of highways was related to lower chronic diseases and premature mortality . Areas characterized by street view images as ‘rural’ (having limited infrastructure) had higher obesity, diabetes , fair/poor self-rated health, premature mortality, physical distress, physical inactivity and teen birth rates but lower rates of excessive drinking. Analyses at the census tract level for 500 cities revealed similar adverse associations as was seen at the county level for neighborhood indicators of less urban development. Possible mechanisms include the greater abundance of services and facilities found in more developed areas with roads, enabling access to places and resources for promoting health. GSV images represents an underutilized resource for building national data on neighborhoods and examining the influence of built environments on community health outcomes across the United States.
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MPRC People
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Quynh Nguyen, Ph.D., M.S.P.H.
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Quynh Nguyen Publications
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Population Health Trends among Hetrosexual and Sexual Minority Adults
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Jessica N. Fish, Family Science, investigates sexual-orientation-related disparities in mental, behavioral, and physical health
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Seed Grant Program
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Seed Grants Awarded
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Structural Racism and Population Health: The Role of Race, Socioeconomic Status and Context
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Caryn Bell, African American Studies, examines the effects of macro-level structural racism on population health
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Seed Grant Program
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Seed Grants Awarded
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Devon Payne-Sturges on air pollution and child health
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Absent federal policy, the state of Maryland can implement policies to protect children’s health
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Research
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Selected Research