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 185 for “"Kaplan-Meier"”.
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Quantile Regression With Censored Data
Keywords. Survival Analysis; Quantile Regression; Kaplan-Meier; the Cox Proportional Hazards Model; Accelerated Failure Time Model.
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Implantologische und prothetische Überlebens- und Erfolgsraten beim teilbezahnten Patienten : eine prospektive Langzeitstudie mit 3i-Implantaten über 5 Jahre
… Knochenabbaus als Misserfolg gewertet. Nach Kaplan-Meier lag die geschätzte Überlebenswahrscheinlichkeit für die Implantate nach 84 Monaten bei 93% (Konfidenzintervall 88% - 97%). Die Erfolgswahrscheinlichkeit nach Kaplan-Meier lag nach 84 Monaten bei 78,9% (Konfidenzintervall 70,4%- 87,4%). …
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Langzeitergebnisse nach radiologischen Interventionen der Becken- und Beinarterien
… wurden in einer statistischen Auswertung nach Kaplan-Meier dargestellt. Dabei wurden die Ergebnisse auf die unterschiedlichen Grundparameter (Alter, Geschlecht, Risikofaktoren, Fontaine-Stadium, Gefäßlokalisation, Runoff, Stenosenart, Stenosenanzahl, Interventionsart...) bezogen.
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Blood Pressure Variability and Ambulatory Arterial Stiffness Index in Predicting Major Adverse Cardiovascular Events
… analysis with hazard ratio (HR) and (95% CI) and Kaplan-Meier analyses were conducted for time-to-event (MACE) data. Results: A total of 829 patients (424 males, 405 females) were followed for 4.35 (±1.32) years. There were 38 MACE (4.58%) events. AASI values were significantly greater in patients …
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Técnicas de análise de sobrevivência para sujeitos infetados com HIV
… survival no qual foram utilizados os métodos de Kaplan-Meier e Cox. O teste logrank foi aplicado para comparação de curvas de sobrevivência estimadas pelo método de Kaplan-Meier em diferentes grupos das covariáveis categóricas, sendo que foi estimado o tempo de vida mediano em cada um desses …
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The prognosis of tuberculosis in adults infected with Human Immunodeficiency Virus (HIV-1)
… treated with 6-month short course regimens. The Kaplan-Meier method was used to estimate the overall survival times of tuberculosis and non-tuberculosis patients. The generalized log rank test was used to compare the survival curves of these two groups. The Cox proportional hazards regression …
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Aspects of Reproduction and Cub Survival in a Hunted Population of Virginia Black Bears
… between 1995 and 1999 to estimate cub survival. Kaplan-Meier staggered entry analysis provided 306-day survival rates for 82 cubs. The survival estimates for males and females were 73% (0.49, 0.96) and 91% (0.80, 1.00), respectively. The overall 306-day survival rate for all cubs was 81% …
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Post-Diagnosis Depressive Symptoms and Survival in the Colon Cancer Patterns of Care in Chicago Study
… with the National Death Index through 2018. Kaplan–Meier methods were used to estimate survival distributions. Multivariable Cox proportional hazards models estimated hazard ratios (HR) and 95% confidence intervals (CI), adjusting for demographic, socioeconomic, and clinical covariates. …
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Assessing the effectiveness of current UK guidelines on familial colorectal cancer risk
… mutation carriers, RR 9.290 (1.3557- 63.6653). Kaplan-Meier analysis demonstrated no significant difference in cancer rates between groups. There was a significantly higher risk of polyp detection in the high-risk group compared to the low-risk group. Kaplan-Meier analysis demonstrated a …
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Analysis of markers of cell division cycle, apoptosis and autophagy flux in glioblastoma
… when tumours received adjuvant treatment (Kaplan Meier test, p=0.0046 and p =0.0063 respectively). In group 1, Mcm2 and PHH3 LI did not correlate significantly with survival. There was no relationship between patient survival and LI for any marker in group 2. A reduction in the LI of Mcm2, …
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Risk of Cardiovascular Disease Inhibitors Among HIV seropositive Adults on Protease Inhibitors Containing Antiretroviral Therapy at Adult Infectious Disease Centre at the University Teaching Hospital
… model was used to assess covariates, while Kaplan Meier method for probability of survival to CVD and time to CVD comorbidity were utilised. Results: The incidence of CVD among PIs was 62% versus 38% for the non-PI ART group. The risk of CVD was found to be 2.3 times higher in the PIs ART …
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Έκφραση των κλωντινών-1,4,5,7 και αποφραξίνης σε ασθενείς με ηπατοκυτταρικό καρκίνωμα και συσχέτιση αυτών με κλινικοπαθολογοανατομικούς παράγοντες και με την επιβίωση των ασθενών
… cox regression ανάλυση (p=0.049) και στην Kaplan Meier ανάλυση(p=0.04). Η πολυπαραγοντική cox regression ανάλυση έδειξε ότι τα επίπεδα της κλωντίνης-4 αποτελούν ανεξάρτητο παράγοντα που σχετίζεται με την ολική επιβίωση (p=0.01). Eπίσης, τα ελαττωμένα επίπεδα έκφρασης της κλωντίνης-4 …
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Fattori prognostici nel melanoma cutaneo e nel tumore mammario associati a caratteristiche molecolari simil-staminali
… (P = 0.02 and P = 0.029, respectively). Kaplan–Meier analysis revealed a poorer outcome for stage III and IV patients with associated expression of nestin, vimentin and cytoplasmic GR in tumour tissue (P = 0.02). Nestin was detectable in tumoral cells and in endothelial cells of blood …
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Dollar Stores and Supermarket Survivability in Non-metropolitan US Communities
… of dollar stores surrounding grocery stores, Kaplan Meier curves and Cox proportional hazards models were used for survival analysis of grocery stores. The findings of the models used imply that the presence of dollar stores is not associated with increasing the likelihood of grocery store …
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Survival analysis of the modernized retirement system for the United States Marine Corps
… Retirement System. The analysis utilizes Kaplan-Meier survival analysis for expected lengths of service and probit regression models to evaluate various retirement choices under the Modernized Retirement System. The results of the analysis indicate the U.S. Marine Corps will experience a …
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Prognostické a prediktivní markery v léčbě karcinomu pankreatu
… were collected. Survival was estimated using the Kaplan-Meier method and differences in survival were evaluated using the log-rank test. Results: We identified lymphocyte-to-monocyte ratio ≥3, systemic inflammatory response index <2.3, carcinoembryonic antigen <2.5, neutrophil-to-lymphocyte ratio …
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Power and Pressure: Frailty as a Measure of Cumulative Stress Among Ancient Maya Royals from Belize
… according to the Skeletal Frailty Index (SFI). Kaplan-Meier and Cox hazard analyses were used for statistical analysis. Hazard analyses demonstrated that higher number if skeletal biomarkers present is associated with higher survival probability. These results suggest that the royals, despite …
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Análise comportamental : um estudo por análise de sobrevivência, aplicada a cartões de crédito
… recolhidos, estimado modelo não-paramétrico de Kaplan-Meier e vários modelos de Cox de riscos proporcionais. Com recurso à curva ROC, dependente do tempo, à AUC e ao índice de Gini, conclui-se que o modelo final apresenta um desempenho positivo para identificar os clientes em situação de …
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Long-term patency of nitinol stent placement in dysfunctional hemodialysis
… 2-, 3-, 4-, 5-, and 6-year were calculated by Kaplan-Meier survival analysis. The primary and secondary patency rates according to age and gender of the patient, history of diabetes mellitus and hypertension, diameter and length of the stent, location of the stent (central, upper arm, cubital, …
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Kasos adenokarcinomos diagnostinių ir prognostinių biožymenų paieška /
… for clinical evaluation and comparison. Kaplan–Meier survival analyses were used to evaluate disease-free survival (DFS) and overall survival (OS). Poorer overall survival was significantly dependent on increased CEACAM6 blood serum concentrations (17.0 vs. 12.6 months, p = 0.017) in …
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