Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"Generalized Estimating Equations"”.
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Markov Chain Marginal Bootstrap for Generalized Estimating Equations
… repeated measures over time on each subject. The generalized estimating equations (GEE) approach (Liang and Zeger, 1996) has been widely used for the analysis of longitudinal data. The ordinary GEE approach can be robustified through the use of truncated robust estimating functions. Statistical …
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Model Robust Regression Based on Generalized Estimating Equations
… on local estimation with a global, parametric generalized estimating equations (GEE) estimate through a mixing parameter on both the mean scale and the linear predictor scale. As a special case, when data are uncorrelated, this amounts to mixing a local likelihood estimate with predictions from …
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Dynamic models for time-varying outcomes: An application to the 2015-2017 patient cohort on antiretroviral therapy at Luderitz hospital, Namibia
… visits. This study used mixed effects model and Generalized Estimating Equations (GEE) to model longitudinally measured viral load as a function of the dynamic as well as non-dynamic covariates. To account for missingness in the outcome variable as well as potential measurement error in …
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Shared Haplotype Length Regression and Its Application
… under positive selection. My statistics employs generalized linear models and generalized estimating equations to test for associations between shared haplotype lengths and traits. Due to the possibility of high number of haplotypes in the model, I also proposed an extension of the statistics …
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The Timing of Walking and Post-Meal Blood Sugar Levels in Adults with Type 1 Diabetes
… glucose monitoring data were analyzed using generalized estimating equations. In the 2-hours pre- to 4-hours post-dinner, pre-meal walks significantly improved percent time in 3.9-10.0mmol/L (LSM±SE=84.9±1.5%; B=5.58; p=0.01) and decreased percent time in 10.0-13.9mmol/L (LSM±SE=11.1±1.4%; …
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Cholinesterase Inhibitors and Neuropathology of Cerebrovascular Disease and Other Dementias in Patients with Alzheimer’s Disease: A Study of NACC Autopsy and Medical History Data, 2005 – 2017
… neuropathological examination at autopsy. Generalized Estimating Equations were used to calculate the association between use of AD or cardiovascular medications and dementia pathology. Approximately 67% of the study population reported using a ChEI. Microinfarcts were negatively associated …
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Marginal Methods for the Design and Analysis of Cluster Randomized Trials and Related Studies
… modeling framework with data analyzed using generalized estimating equations paired with matrix-adjusted estimating equations with a bias-corrected sandwich variance estimator for the correlation parameters. In the first topic, we develop methods for sample size and power calculations in …
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Analysis of Longitudinal Data With Missing Responses: A Study of Pain Control Cost
… complete imputed daily cost data are produced. A generalized estimating equations (GEE) model, is then applied to conduct analysis on each set of data, producing multiple analysis results. The correlation between observations within patients is presented in an AR-1 working correlation structure. …
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Disparities in Admission and Pediatric Emergency Outcomes by Race, Ethnicity, and Language.
… wait times, and unexpected return ED visits. Generalized estimating equations (GEE) and Cox proportional hazard models were used to assess the association between REaL and patient outcomes. Results: 35,180 patient encounters were analyzed. White patients had significantly higher adjusted odds …
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The Effect of Birth Order on Infant Injury
… “severe injury event.” Data was analyzed using generalized estimating equations (GEE). Birth order was associated with infant injury events and severe infant injury events. Birth order 4th or greater had the greatest effect for both injury outcomes. Additionally, several maternal characteristics …
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Antiretroviral Regimen and Pregnancy Outcomes of Women Living with HIV in a US Cohort
… for the analysis of baseline characteristics and generalized estimating equations to adjust for the rate of HIV viral suppression between groups. There were a total of 235 mother-infant pairs whose pregnancies progressed beyond 20 weeks. The study demonstrated that women on INSTI regimens were …
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Analysis of Models for Longitudinal and Clustered Binary Data
… multivariate probability models. We discuss the generalized estimating equations and the quadratic inference function methods for estimating the regression parameter in marginal models. Relative efficiency calculations show these methods when compared to the likelihood estimates could result in …
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Tube centrifugation for processing platelet-rich plasma in the horse
… for RBC, WBC, and platelets) and binary logistic generalized estimating equations with horse as a blocking factor (absolute numbers of WBC, and platelets). Aerobic and anaerobic cultures were performed. Significance was set at p<0.05. Mean platelet concentrations ranged from 1.55 to 2.58 fold. The …
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Migrations and gradations : reappraising the health profile of immigrants to Canada
… health perspective (Evans, 1994), using generalized-estimating equations (GEE) to examine the compounding effect of past and recent predictors of health. Demographic
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Influência da manipulação do foco atencional sobre a atenção seletiva visual, tempo de reação e capacidade funcional de mulheres idosas praticantes do método Pilates
… Statistical analyses were performed using Generalized Estimating Equations (GEE), with gamma distribution for asymmetric variables and normal distribution for symmetric variables. Additionally, effect size analyses (Cohen’s d) and association tests between engagement and focus type …
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Markers of Circadian Disruption and Reproductive Risk Factors for Breast Cancer
… among the Nurses' Health Study II cohort, estimating cause-specific hazards using proportional hazards models with time-dependent covariates. The cross-sectional associations between nocturnal melatonin production, menstrual cycle length and circulating sex steroid hormones and prolactin …
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Workforce Patterns and the Prevention of Mother-to-Child Transmission of HIV Option B Cascade in Côte d'Ivoire
… using multivariate logistic regression with generalized estimating equations. Results: Statistically significant positive associations were found between HIV testing and the following workforce densities (odds ratios presented are for a difference of 1 healthcare worker per 1000 new antenatal …
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Longitudinal analysis for binary and count data
… on quasi-likelihood theory. This method uses generalized estimating equations to arrive at consistent estimates of the regression coefficients and their standard errors, and can be applied to any longitudinal response with univariate marginal distributions for which the quasi-likelihood …
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Individual Resilience, Social Support, and Health Risk Behaviors in Adolescents and Young Adults: Study on Cross-sectional and Longitudinal Samples
… data were analyzed using logistic regression and Generalized Estimating Equations (GEE) models. The results showed that resilience status in general and adversity populations varied over time. However, when viewed over a long period of lifetime, individual resiliency on health risk behaviors …
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