Works Published in 2012

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Displaying all 14 works

Sorted by most recent date added to the index first, which may not be the same as publication date order.

2012 chapter

Modeling equity for allocation in public resources

In M. Johnson (Ed.), Community-Based Operations Research: Decision Modeling for Local Impact and Diverse Populations (1st ed., pp. 97–118). New York: Springer.

By: P. Leclerc, L. McLay & M. Mayorga

Ed(s): M. Johnson

Source: NC State University Libraries
Added: May 17, 2021

2012 journal article

Maternal Pre-Pregnancy Weight and Gestational Weight Gain and Their Association with Birthweight with a Focus on Racial Differences

Maternal and Child Health Journal, 17(1), 85–94.

By: K. Hunt*, M. Alanis*, E. Johnson*, M. Mayorga* & J. Korte*

author keywords: Gestational weight gaink; Racial/ethnic health differences; Obesity; Birthweight
MeSH headings : Adolescent; Adult; Birth Certificates; Birth Weight; Black People / statistics & numerical data; Body Mass Index; Body Weight / ethnology; Cross-Sectional Studies; Female; Gestational Age; Humans; Infant, Newborn; Maternal Age; Pregnancy; Prevalence; Regression Analysis; Socioeconomic Factors; South Carolina / epidemiology; Weight Gain / ethnology; White People / statistics & numerical data; Young Adult
TL;DR: A strong association between excessive GWG and higher infant birthweight across maternal BMI classes in NHW and NHB women is reported, given the high prevalence of excessiveGWG even a small increase in birthweight may have considerable implications at the population level. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, ORCID
Added: January 21, 2021

2012 journal article

Integrative Prescreening in Analysis of Multiple Cancer Genomic Studies

BMC Bioinformatics, 13(168).

MeSH headings : Computational Biology / methods; Computer Simulation; Data Interpretation, Statistical; Gene Expression Profiling / methods; Genomics / methods; Humans; Liver Neoplasms / genetics; Neoplasms / genetics; Pancreatic Neoplasms / genetics; Reproducibility of Results; Sample Size
TL;DR: The proposed integrative prescreening provides an effective way to reduce the dimensionality in cancer genomic studies and can be coupled with existing analysis methods to identify cancer markers. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: September 27, 2020

2012 journal article

Impact of maternal diabetes on birthweight is greater in non-Hispanic blacks than in non-Hispanic whites

Diabetologia, 55(4), 971–980.

By: K. Hunt*, N. Marlow*, M. Gebregziabher*, C. Ellerbe*, J. Mauldin*, M. Mayorga*, J. Korte*

author keywords: Birthweight; Diabetes; Gestational diabetes mellitus; Non-Hispanic black; Non-Hispanic white; Pregnancy; Prepregnancy diabetes
MeSH headings : Adolescent; Adult; Black or African American; Birth Weight / physiology; Diabetes Mellitus, Type 2 / ethnology; Diabetes, Gestational / ethnology; Female; Health Status Disparities; Humans; Infant, Newborn; Male; Maternal Age; Obesity / ethnology; Pregnancy; Pregnancy in Diabetics / ethnology; South Carolina; White People
TL;DR: The data suggest that the negative effects of GDM combined with obesity during pregnancy may be greater in NHB than in NHW individuals. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, NC State University Libraries
Added: August 28, 2020

2012 journal article

Optimal dispatching strategies for emergency vehicles to increase patient survivability

International Journal of Operational Research, 15(2), 195.

By: D. Bandara*, M. Mayorga* & L. McLay*

TL;DR: The objective of this research is to determine how to optimally dispatch paramedic units to emergency calls to maximise patients' survivability, and forms the problem as Markov decision process to obtain the optimal dispatching policies. (via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: August 28, 2020

2012 journal article

A dynamic programming approach to solving the assortment planning problem with multiple quality levels

Computers & Operations Research, 39(7), 1521–1529.

By: M. McElreath* & M. Mayorga*

author keywords: Assortment planning; Dynamic programming; Line search; Locational choice
TL;DR: A combined dynamic programming/line search approach is presented which finds an optimal solution when customer preference for the horizontal attributes are distributed according to a unimodal distribution and enables significant state reduction and therefore efficient solution times. (via Semantic Scholar)
Sources: Crossref, ORCID
Added: August 28, 2020

2012 journal article

Two-stage quadratic integer programs with stochastic right-hand sides

Mathematical Programming, 133(1-2), 121–158.

author keywords: Stochastic integer programming; Quadratic integer programming; Value functions; Superadditive duality
TL;DR: This work considers two-stage quadratic integer programs with stochastic right-hand sides, and presents an equivalent reformulation using value functions, which can solve instances whose extensive forms are hundreds of orders of magnitude larger than the largest quadRatic integer programming instances solved in the literature. (via Semantic Scholar)
Source: ORCID
Added: May 6, 2020

2012 journal article

Estimating optimal treatment regimes from a classification perspective

Stat, 1(1), 103–114.

By: B. Zhang*, A. Tsiatis n, M. Davidian n, M. Zhang* & E. Laber n

author keywords: classification; doubly robust estimator; inverse probability weighting; personalized medicine; potential outcomes; propensity score
TL;DR: This work proposes a novel and general framework that transforms the problem of estimating an optimal treatment regime into a classification problem wherein the optimal classifier corresponds to the optimalreatment regime. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: ORCID, Crossref, NC State University Libraries
Added: January 23, 2020

2012 journal article

Estimated Number of Preterm Births and Low Birth Weight Children Born in the United States Due to Maternal Binge Drinking

Maternal and Child Health Journal, 17(4), 677–688.

By: K. Truong*, O. Reifsnider*, M. Mayorga* & H. Spitler*

author keywords: Maternal binge drinking; Preterm birth; Low birth weight; Racial/ethnic disparities; Simulation
MeSH headings : Adolescent; Adult; Age Distribution; Behavioral Risk Factor Surveillance System; Binge Drinking / complications; Binge Drinking / epidemiology; Cross-Sectional Studies; Economics; Ethnicity / statistics & numerical data; Female; Humans; Infant, Low Birth Weight; Infant, Newborn; Logistic Models; Male; Maternal Age; Pregnancy; Premature Birth / epidemiology; Prevalence; Risk Factors; United States / epidemiology; Young Adult
TL;DR: Maternal binge drinking contributed significantly to PTB and LBW differentially across sociodemographic groups, and women ages 40–44 had the highest adjusted binge drinking rate and highest PTB rate due to maternal binge drinking. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (OpenAlex)
Sources: Crossref, ORCID
Added: December 15, 2019

2012 journal article

Genome-wide association between DNA methylation and alternative splicing in an invertebrate

BMC Genomics, 13(1), 480.

By: K. Flores*, F. Wolschin*, J. Corneveaux*, A. Allen*, M. Huentelman* & G. Amdam*

MeSH headings : Alternative Splicing; Animals; Base Sequence; Bees / genetics; Conserved Sequence; CpG Islands; DNA Methylation; Evolution, Molecular; Exons / genetics; Gene Expression Profiling; Genes, Insect; Genome-Wide Association Study; Molecular Sequence Data; Sequence Analysis, RNA; Transcriptome; Wasps / genetics
TL;DR: The finding that methylated genes are enriched for alternative splicing suggests that, in invertebrates, exon-level DNA methylation may play a role in the construction of splice variants by positively influencing exon inclusion during transcription. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Crossref
Added: July 20, 2019

2012 journal article

A Robust Method for Estimating Optimal Treatment Regimes

BIOMETRICS, 68(4), 1010–1018.

By: B. Zhang n, A. Tsiatis n, E. Laber n & M. Davidian n

author keywords: Doubly robust estimator; Inverse probability weighting; Outcome regression; Personalized medicine; Potential outcomes; Propensity score
MeSH headings : Breast Neoplasms / epidemiology; Breast Neoplasms / therapy; Clinical Trials as Topic / methods; Computer Simulation; Decision Support Systems, Clinical; Female; Humans; Models, Statistical; Outcome Assessment, Health Care / methods; Prevalence; Regression Analysis; Treatment Outcome
TL;DR: A doubly robust augmented inverse probability weighted estimator is used for finding the optimal regime within a class of regimes by finding the regime that optimizes an estimator of overall population mean outcome. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2012 journal article

Variable selection for covariate-adjusted semiparametric inference in randomized clinical trials

STATISTICS IN MEDICINE, 31(29), 3789–3804.

author keywords: covariate adjustment; false selection rate control; oracle property; semiparametric treatment effect estimation; shrinkage methods; variable selection
MeSH headings : Algorithms; Humans; Models, Statistical; Randomized Controlled Trials as Topic / statistics & numerical data; Research Design; Selection Bias; Statistics, Nonparametric
TL;DR: It is demonstrated that objective variable selection techniques combined with a semiparametric framework can identify key variables and lead to unbiased and efficient inference on the treatment effect and show its superior performance relative to that of existing methods. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2012 article

Why Statistics?

Davidian, M., & Louis, T. A. (2012, April 6). SCIENCE, Vol. 336, pp. 12–12.

MeSH headings : Biostatistics; Data Interpretation, Statistical; Education, Graduate; Statistics as Topic / education; Workforce
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Mixed model analysis of censored longitudinal data with flexible random-effects density

BIOSTATISTICS, 13(1), 61–73.

author keywords: Censoring; HCV; HIV; Limit of quantification; Longitudinal data; Random effects
MeSH headings : Antiviral Agents / therapeutic use; Bias; Biostatistics; Data Interpretation, Statistical; Hepatitis C / drug therapy; Hepatitis C / virology; Humans; Interferon-alpha / therapeutic use; Linear Models; Longitudinal Studies; Models, Statistical; Statistics, Nonparametric; Viral Load / drug effects
TL;DR: A mixed model framework for censored longitudinal data in which the random effects are represented by the flexible seminonparametric density is developed andSimulations show that this approach can lead to reduction in bias and increase in efficiency relative to assuming Gaussian random effects. (via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: August 6, 2018

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