The educational gradient of U.S. adult mortality became steeper between 1960 and the mid 1980s, but whether it continued to steepen is less clear given a dearth of attention to these trends since that time. This study provides new evidence on trends in the education-mortality gradient from 1986 to 2006 by race, gender, and age among non-Hispanic whites and blacks using data from the 2010 release of the National Health Interview Survey Linked Mortality File. Results show that, for white and black men, the gradient steepened among older ages because declines in mortality risk across education levels were greater among the higher educated. The gradient steepened among white women, and to a much lesser and only marginally significant extent among black women, largely because mortality risk decreased among the college-educated but increased among women with less than a high school degree. Greater returns to higher education and compositional changes within educational strata likely contributed to the trends.
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http://dx.doi.org/10.1177/0164027510392388 | DOI Listing |
Educ Psychol Meas
January 2025
Faculty of Psychology and Educational Sciences, KU Leuven, Campus KULAK, Kortrijk, Belgium.
Multidimensional Item Response Theory (MIRT) is applied routinely in developing educational and psychological assessment tools, for instance, for exploring multidimensional structures of items using exploratory MIRT. A critical decision in exploratory MIRT analyses is the number of factors to retain. Unfortunately, the comparative properties of statistical methods and innovative Machine Learning (ML) methods for factor retention in exploratory MIRT analyses are still not clear.
View Article and Find Full Text PDFCogn Neurodyn
December 2025
National Engineering Research Center of Educational Big Data, Central China Normal University, Luoyu Road, Wuhan, 430079 Hubei China.
Identifying the cognitive state can help educators understand the evolving thought processes of learners, and it is important in promoting the development of higher-order thinking skills (HOTS). Cognitive neuroscience research identifies cognitive states by designing experimental tasks and recording electroencephalography (EEG) signals during task performance. However, most of the previous studies primarily concentrated on extracting features from individual channels in single-type tasks, ignoring the interconnection across channels.
View Article and Find Full Text PDFAnal Chem
January 2025
Interdisciplinary, Molecular Biology of Biological Function, Changbai Mountain Key Laboratory of Natural Medicine of Ministry of Education, Yanbian University, Yanji 133000, China.
Extracellular vesicles (EVs) play a crucial role in diagnosis and treatment, yet obtaining highly purified EVs from complex biological samples is often hindered by nanoscale contaminants. In this work, considering the charge-to-size characteristics of EVs, a circular multicavity electrophoresis (CME) with gradient pore size distribution was constructed in the gradient electric field to realize the isolation and preparation of EVs. By the gradient gel sieving effect, small cell debris, EVs, and proteins in biological samples were gradually separated.
View Article and Find Full Text PDFAnn Epidemiol
January 2025
School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Pietermaritzburg Campus, Pietermaritz.
Purpose: Epidemiologic studies are important in assessing risk factors of mortality. Machine learning (ML) is efficient in analyzing multidimensional data to unravel dependencies between risk factors and health outcomes.
Methods: Using a representative sample from the National Health and Nutrition Examination Survey data collected from 2009 to 2016 linked to the National Death Index public-use mortality data through December 31, 2019, we applied logistic, random forests, k-Nearest Neighbors, multivariate adaptive regression splines, support vector machines, extreme gradient boosting, and super learner ML algorithms to study risk factors of all-cause mortality.
Sci Rep
January 2025
School of Public Administration, South China University of Technology, Guangzhou, China.
Parental well-being is linked to the life chances of adult children in later life. Despite accumulated knowledge on the role of children's education on parental longevity in developed contexts, it remains unknown how children's education may influence the trajectories of parental physical well-being over the aging process, particularly in developing contexts. Using a growth curve model and four-wave data from the China Health and Retirement Longitudinal Study, this study examines the association between children's education and parental physical functioning trajectories as parents age.
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