dc.contributor.author | Κυπριανού, Αικατερίνη | el |
dc.contributor.author | Kyprianou, Aikaterini | en |
dc.date.accessioned | 2018-12-06T12:02:47Z | |
dc.date.available | 2018-12-06T12:02:47Z | |
dc.date.issued | 2018-12-06 | |
dc.identifier.uri | https://dspace.lib.ntua.gr/xmlui/handle/123456789/48232 | |
dc.identifier.uri | http://dx.doi.org/10.26240/heal.ntua.16052 | |
dc.rights | Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/gr/ | * |
dc.subject | Κλαριθρομυκίνη | el |
dc.subject | Ανάλυση επιβίωσης | el |
dc.subject | Επίδραση | el |
dc.subject | Σήψη | el |
dc.subject | Clarithromycin | en |
dc.subject | Survival analysis | en |
dc.subject | Effect | en |
dc.subject | Sepsis | en |
dc.title | Επίδραση της κλαριθρομυκίνης στις εξωνοσοκομειακές πνευμονίες | el |
heal.type | bachelorThesis | |
heal.classification | Στατιστική και μαθηματικά | el |
heal.classificationURI | http://data.seab.gr/concepts/612439338f883f5eb6bd1c572627da57a3b10bfb | |
heal.language | el | |
heal.access | campus | |
heal.recordProvider | ntua | el |
heal.publicationDate | 2018-10-26 | |
heal.abstract | The purpose of the present study is to verify the bene t of clarithromycin administration in septic patients with hospital acquired pneumonia. Chapter 1 describes the phenome- non of sepsis and its relation with hospital acquired pneumonia and reports the bene ts of treatment with the antibiotic clarithromycin of septic patients with hospital acquired pneu- monia. Also, the working data to be used for the validation of the bene t of clarithromycin administration are presented. The best statistical tool in the study of such problems are survival models. Chapter 2 gives an extensive description of these models, reporting the basic functions, such as hazard function, survival function, cumulative hazard function and their relationships. The section also reports non-parametric estimators, speci cally the Kaplan-Meier estimator of the survival function and the Nelson-Aalen estimator of the cumulative hazard function, as well as, parametric models of survival analysis. Specially emphasis is given to Cox proportional hazards model. Chapter 3 elaborates on a basic extension of the proportional hazards model, namely the frailty models. The three basic frrailty models are described, which are the univariate, multivariate and correlated frailty models. Finally, in chapter 4, using the statistical package R, the statistical analysis of the data is performed, describing the basic dependent and independet variables, which are subscequently entered in the Cox proportional hazards model, as well as, on the frailty model based on the speci c Cox model. Results showed that the bene t of clarithromycin administration, regarding 28-day survival, remains statistically signi cant, even after adjusting for signi cant risk factors, such as the initial morbidity indices. Further analysis with frailty models showed that the initial model could be potentially improved by the inclusion of other factors related with sepsis and survival. | en |
heal.abstract | Μελετήθηκε το όφελος της κλαριθρομυκίνης σε σηπτικούς ασθενείς με εξωνοσομειακές πνευμονίες. Σκοπός η βελτίωση της επιβίωσής τους με τη χορήγηση του αντιβιωτικού αυτού. Χρησιμοποιήθηκε ανάλυση επιβίωσης και συγκεκριμένα η εκτιμήτρια Kaplan-Meier καθώς και το μοντέλο αναλογικών κινδύνων του Cox. Επιβεβαιώθηκε η βελτίωση επιβίωσης με τη χορήγηση κλαριθρομυκίνης σε σηπτικούς ασθενείς με εξωνοσομειακές πνευμονίες. | el |
heal.advisorName | Φουσκάκης, Δημήτριος | el |
heal.committeeMemberName | Λουλάκης, Μιχαήλ | el |
heal.committeeMemberName | Κοκκίνης, Βασίλειος | el |
heal.academicPublisher | Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών. Τομέας Μαθηματικών | el |
heal.academicPublisherID | ntua | |
heal.numberOfPages | 72 σ. | |
heal.fullTextAvailability | true |
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