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Document Server@UHasselt (58.026 recursos)

Repository of the University of Hasselt containing publications in the fields of statistics, computer science, information strategies and material from the Institute for behavioural sciences.

Applied Statistics: Master theses

Mostrando recursos 1 - 7 de 7

  1. The influence of a multidimensional rehabilitation program on physical and psychosocial health in cancer survivors

    Mbaye, Abouna
    Purpose: To investigate if there is any effect using tests (physical and psychosocial) before and after the rehabilitation for the cancer survivors. We investigate also if there is some influence of the social demographical factors. The main interest is the difference between the two measurements before (M1) and after (M2). The data set used in this analysis was the responses from the Physiotherapy Department of the Virga Jesse hospital at Hasselt. About 129 patients with any oncological pathology, divided in 10 groups over the past 3 years, participate to this rehabilitation program. Methods: T- test and Linear Mixed Model (L.M.M.) were employed for the data analysis. Results: Under Paired t-test,...

  2. The physical rehabilitation of muscle weakness and lost quality of movement in patients with multiple sclerosis

    Martinez Bello, Daniel
    The objective of this study was to evaluate the effects of five physical therapy intervention protocols (control, micro current electrical therapy, resistance, resistance plus electro stimulation, whole body vibration) on strength and coordination in the inferior extremities in 41 patients with multiple sclerosis in a 10-week intervention period. For the analysis were created 10 groups of variables with similar characteristics corresponding to variables of coordination and strength. For each group was fitted a repeated measures marginal model considering the different variables for each group as a within-subject factor. Based in the models proposed it was found the Isometric outcomes present significant differences between the control and the treatment Micro...

  3. Objective classification of gait patterns in children with cerebral palsy

    Azupardo, Mervic
    “Cerebral” is defined as pertaining to the brain, cerebrum or intellect, and “Palsy” refers to paralysis of muscle or group of muscles. Jointly, Cerebral Palsy (CP) is the term used to describe a group of conditions with motor impairments resulting from brain damage during the early stages of development. Cerebral palsy is non progressive and is usually not diagnosed until a child is about 2 to 3 years of age. About 2 to 3 children in 1,000 over the age of three have cerebral palsy. This is because of the plasticity of a child's central nervous system, or its ability to recover completely or partially after...

  4. Two stage analysis of learning curves on laparoscopic study of surgeons

    Aynalem, Sintayehu
    The performance of many repeated tasks change with experience, with improvement being most rapid at first and then tails off over time until a steady state is reached. The term ‘learning curve’ is often used as shorthand to describe this phenomenon. The objectives of this study were to evaluate individual learning curves for surgeons performing laparoscopic activities for two different tasks important for a surgeon (the nuts and the ropes) that are timed and also to evaluate the possibility of using the information from psychological test and gender in predicting surgical performance. Moreover, it was of interest to know if the measures of performance from the...

  5. The EM-algorithm for modeling Serial Analysis of Gene Expression (SAGE) data

    Ampe, Michèle
    Serial Analysis of Gene Expression (SAGE), a technique that has been developed at Johns Hopkins University in the USA, allows the analysis of overall gene expression patterns. It is an open platform because SAGE does not require a preexisting clone, unlike microarrays. So SAGE can be used for the identification and quantification of known genes as well as new genes. A SAGE experiment, from a statistical points of view, consists of the following 7 steps: 1. Extract a sample of mRNA fragments from a biological sample. 2. Convert the mRNA fragment into cDNA clones. 3. Generate tags by cutting 10 or 17 base long...

  6. Defaulters in a cohort of HIV infected patients

    Akindunjoye, Oluwaseyi
    The advent of antiretroviral therapy (ART) has transformed HIV/AIDS from a primary deadly disease into a chronic disease characterized by enhanced quality of life and increased life expectancy. Once started, the antiretroviral treatment should be continued lifelong and adherence to this treatment should be nearly perfect to enable long-term efficacy. Despite the improvements in management in Europe, HIV infected persons still remain vulnerable to drop out/loss to follow up from care and treatment. Therefore, this research tries to review the defaulter rate during the last five years (2002-2006) at the HIV outpatient clinic and how it is evolving during this period. Data was explored using Kaplan-Meier curve to know...

  7. Analysis of the secondary endpoints of the SPR study using competing risk models

    Adedipe, Adedoyin
    The Scleral Buckling and Primary Vitrectomy (SPR) study is an European multicenter clinical trial where patients with a type of retinal detachment (caused by a break, tear or hole in the retina) called rhegmatogenous retinal detachment (RRD) were randomized into one of two surgical methods of treatment (scleral buckling or primary vitrectomy method) in each of two subtrials. The subtrials, which consist of two groups of patients according to the state of their eye lens is either the aphakic (artificial lens) or the phakic (natural lens) group. The study recorded the time of the occurrence of three events of interest, the proliferative vitreoretinopathy (a post operation complication in...

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