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 7 of 7 for “"multi-state model"”.
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A multi-state model of treatment states in an antiretroviral treatment programme cohort in Cape Town
… after an interruption. Methods We fitted a multi-state model to data from the Khayelitsha cohort of the International Epidemiologic Databases to Evaluate AIDS. Between 2001 and 2012, 6796 adult patients starting ART were included. Potential treatment interruption periods were defined between …
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Multi-state models for the analysis of Wheeze in a birth cohort of Western Cape children
… middle-income contexts. This study aimed to use multi-state models to estimate the rate of transition among various states of wheeze in children from birth to the age of three years. This study also aimed to investigate the association between possible risk factors for childhood wheezing and the …
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Natal dispersal and first-year survival in a neotropical migratory songbird
… By incorporating natal dispersal distance into a multi-state model framework, I accounted for the potential confounding effect of dispersal distance on recapture probabilities. Using this model framework, I investigated the effects of season, presence of a cowbird nestmate, brood size, and …
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Using instream stationary antennas to monitor the movements of warm water fishes in a reach of stream bisected by a culvert
… to 100% for <em>Moxostoma duquesni</em>. A multi-state model was implemented to estimate the probability of weekly upstream and downstream movement in the unimpeded reach (upstream= 0.11, 95% CI = 0.08 - 0.16, downstream= 0.07, 95% CI = 0.04 - 0.10), and in the impeded reach (upstream= 0.01, …
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Modelling longitudinal data on respiratory infections to inform health policy
… We investigate the use of statistical models to quantify burden of respiratory disease and evaluate effectiveness of public health interventions, while accounting for the challenges posed by surveillance data. The observational nature of the available information, affected by …
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Estimating HIV incidence from multiple sources of data
… on healthcare services. Bayesian CD4-based multi-state back-calculation methods are a key tool for monitoring the HIV epidemic, providing estimates of HIV incidence and diagnosis rates by disentangling their competing contribution to the observed surveillance data. Improving the …
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The use of ringing data in the study of climatic influences on common passerines
… wetland specialist) a capture-mark-recapture model correlated higher temperature in the breeding grounds with higher adult survival (1998-2010), but - contrary to expectations - not wetter winters. A spatial analysis using a multi-state model in a Bayesian framework did not link survival in …