Results 71 to 80 of about 1,626,021 (272)

A Flexible Joint Longitudinal-Survival Model for Analysis of End-Stage Renal Disease Data [PDF]

arXiv, 2018
We propose a flexible joint longitudinal-survival framework to examine the association between longitudinally collected biomarkers and a time-to-event endpoint. More specifically, we use our method for analyzing the survival outcome of end-stage renal disease patients with time-varying serum albumin measurements. Our proposed method is robust to common
arxiv  

Localization accuracy of 6‐second CBCT for lung IGRT with various breathing patterns

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The 6‐second cone beam computed tomography (CBCT) acquisition of the Ethos HyperSight (Varian Medical Systems, Inc. Palo Alto, CA, USA) on‐board imaging system offers benefits, but could be too fast to accurately capture an average target position in a free‐breathing lung cancer patient. This study aimed to ascertain whether a 6‐second
Jihye Koo, Gage Redler, Vladimir Semenenko, Stephen A. Rosenberg, Emily Keit, Jacqueline M. Andreozzi   +5 more
wiley   +1 more source

Early adolescent pregnancy increases risk of incident HIV infection in the Eastern Cape, South Africa: a longitudinal study

Journal of the International AIDS Society, 2014
Introduction Adolescents having unprotected heterosexual intercourse are at risk of HIV infection and unwanted pregnancy. However, there is little evidence to indicate whether pregnancy in early adolescence increases the risk of subsequent HIV infection.
Nicola J Christofides, Rachel K Jewkes, Kristin L Dunkle, Mzikazi Nduna, Nwabisa Jama Shai, Claire Sterk   +5 more
doaj   +1 more source

A Novel CHMP2B Splicing Variant in Atypical Presentation of Familial Frontotemporal Lobar Degeneration

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT C‐truncating variants in the charged multivesicular body protein 2B (CHMP2B) gene are a rare cause of frontotemporal lobar degeneration (FTLD), previously identified only in Denmark, Belgium, and China. We report a novel CHMP2B splice‐site variant (c.35‐1G>A) associated with familial FTLD in Spain. The cases were two monozygotic male twins who
Sara Rubio‐Guerra, Sara Bernal, David Almenta, Josefina Pérez‐Blanco, Valle Camacho, Isabel Sala, Mª Belén Sánchez‐Saudinós, Jesús García Castro, Judit Selma‐González, Miguel Ángel Santos‐Santos, Álvaro Carbayo, Janina Turon‐Sans, Ricard Rojas‐Garcia, Daniel Alcolea, Juan Fortea, Alberto Lleó, Oriol Dols‐Icardo, Ignacio Illán‐Gala   +17 more
wiley   +1 more source

Spinal Cord Abnormalities in Early Pediatric Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Spinal cord lesions and atrophy in the cervical region are common in adult multiple sclerosis (MS) and correlate with disability. Whether similar abnormalities occur in pediatric MS patients is largely unknown. Clinical and MRI evaluations were performed in 38 pediatric MS patients and 13 healthy controls (HC).
Monica Margoni, Paola Valsasina, Paolo Preziosa, Martina Rubin, Mor Gueye, Lucia Moiola, Maria Assunta Rocca, Massimo Filippi   +7 more
wiley   +1 more source

Dysphagia and Mortality Risk in Individuals With Primary Progressive Apraxia of Speech

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Individuals with primary progressive apraxia of speech (PPAOS) often develop parkinsonism and dysphagia. To evaluate the clinical correlates and impact of dysphagia in this population, we compared enrollment visit data between individuals with (n = 12) versus individuals without (n = 44) dysphagia symptoms.
Gabriela Meade, Nha Trang Thu Pham, Sarah M. Boland, Heather M. Clark, Joseph R. Duffy, Jennifer L. Whitwell, Hugo Botha, Keith A. Josephs, Rene L. Utianski   +8 more
wiley   +1 more source

CNS Mitochondria‐Derived Vesicle in Blood: Potential Biomarkers for Brain Mitochondria Dysfunction

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mitochondrial dysfunction is a hallmark of neurodegenerative diseases like Alzheimer's (AD) and Parkinson's (PD). Our goal was to develop practical, noninvasive methods to assess mitochondrial status through the detection of mitochondria‐derived vesicles (MDVs).
Qi Liu, Wentao Chen, Yahong Wu, Zhen Guo, Jun Chen, Chen Tian, Pan Wang, Shaopeng Zeng, Bin Xu, Jing Duan, Shilong Han, Xiao Xiong, Jing Zhang   +12 more
wiley   +1 more source

Optimal Designs for Longitudinal and Functional Data [PDF]

arXiv, 2016
We propose novel optimal designs for longitudinal data for the common situation where the resources for longitudinal data collection are limited, by determining the optimal locations in time where measurements should be taken. As for all optimal designs, some prior information is needed to implement the proposed optimal designs.
arxiv  

Predictive utility of key family planning indicators on dynamic contraceptive outcomes: Results from longitudinal surveys in Burkina Faso, Kenya, Uganda, and Côte d'Ivoire [PDF]

Demographic Research
BACKGROUND: Many health and demographic surveys routinely collect information on women’s exposure to family planning (FP) messages, counseling on contraceptive side effects, discussions about FP with providers, contraceptive decision-making autonomy, and
Amy Tsui, Dana Sarnak, Phil Anglewicz, Fredrick Makumbi, Georges Guiella, Peter Gichangi, Rosine Mosso, Saifuddin Ahmed   +7 more
doaj   +1 more source

Discontinuation of Immunotherapy in Patients With Relapsing Myelitis Without AQP4/MOG Antibodies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT This study assesses the outcomes of immunotherapy discontinuation in patients with relapsing seronegative idiopathic myelitis (SIM), a condition that remains uninvestigated due to its rarity. We reviewed records from 77 patients with relapsing SIM at the National Cancer Center of Korea, focusing on 11 who discontinued treatment after a median ...
Ki Hoon Kim, You‐Ri Kang, Jae‐Won Hyun, Su‐Hyun Kim, Ho Jin Kim   +4 more
wiley   +1 more source