Results 131 to 140 of about 783,235 (315)

Estimation of colorectal adenoma recurrence with dependent censoring

BMC Medical Research Methodology, 2009
Background Due to early colonoscopy for some participants, interval-censored observations can be introduced into the data of a colorectal polyp prevention trial.
Long Qi, Hsu Chiu-Hsieh, Alberts David S
doaj   +1 more source

Non-mixture cure model for interval censored data: a simulation study [PDF]

, 2014
With the ongoing advance in the medical sciences, we may quite often encounter data sets where some patients have been cured from disease. Standard survival models are usually not appropriate for modeling such data because they simply do not take into ...
Abu Bakar, Mohd Rizam, Arasan, Jayanthi, Ibrahim, Noor Akma, Taweab, Fauzia   +3 more
core  

Consumers' Willingness to Pay a Premium for Climate‐Friendly Food Production: The Role of Production Method Information and Social Norms

Agribusiness, EarlyView.
ABSTRACT This study examines whether information about production methods and social norms can increase consumers' willingness to pay (WTP) a price premium for food produced using climate‐friendly farming methods. A randomized survey experiment was conducted with 1568 respondents across Denmark, Lithuania, and Spain, who were assigned to one of four ...
Kassa Tarekegn Erekalo, Tove Christensen, Sigrid Denver, Marilena Gemtou, Spyros Fountas, Søren Marcus Pedersen   +5 more
wiley   +1 more source

The impact of multiple imputation of coarsened data on estimates on the working poor in South Africa [PDF]

, 2010
South African household surveys typically contain coarsened earnings data, which consist of a mixture of missing earnings values, point responses and interval-censored responses.
Vermaak, Claire
core  

Laparoscopic and Endoscopic Cooperative Surgery for Gastric Cancer as an Alternative Treatment in Elderly Patients: A Prospective Observational Study

Annals of Gastroenterological Surgery, EarlyView.
In a prospective study of 20 elderly gastric cancer patients who declined gastrectomy, laparoscopic and endoscopic cooperative surgery (LECS) was technically safe and preserved postoperative function. However, as oncological curability cannot be assured in advanced cases, careful selection and informed consent are essential.
Marie Washio, Keishi Yamashita, Takuya Wada, Mikiko Sakuraya, Hiroki Harada, Tadashi Higuchi, Koshi Kumagai, Yasushi Orihashi, Chika Kusano, Naoki Hiki   +9 more
wiley   +1 more source

Onset of persistent pseudomonas aeruginosa infection in children with cystic fibrosis with interval censored data

BMC Medical Research Methodology, 2016
Background Persistent Pseudomonas aeruginosa (PPA) infection promotes lung function deterioration in children with cystic fibrosis (CF). Although early CF diagnosis through newborn screening (NBS) has been shown to provide nutritional/growth benefit, it ...
Wenjie Wang, Ming-Hui Chen, Sy Han Chiou, Hui-Chuan Lai, Xiaojing Wang, Jun Yan, Zhumin Zhang   +6 more
doaj   +1 more source

A Quantile Variant of the EM Algorithm and Its Applications to Parameter Estimation with Interval Data

, 2018
The expectation-maximization (EM) algorithm is a powerful computational technique for finding the maximum likelihood estimates for parametric models when the data are not fully observed.
Chanseok Park, Cox DR, Dempster AP, Elsayed EA., Govindarajulu Z., Leemis LM., Press WH, Robert CP, Sun J.   +8 more
core   +1 more source

Prognostic and Predictive Role of Lymph Node Count in Stage II Colon Cancer: A Retrospective Analysis of a Japanese Nationwide Cohort

Annals of Gastroenterological Surgery, EarlyView.
This study analyzed over 3500 patients with stage II colon cancer treated with D3 lymphadenectomy, to reassess the prognostic value of number of harvested lymph node and their role in predicting benefit from adjuvant chemotherapy using a Japanese nationwide cohort.
Kozo Kataoka, Akira Ouchi, Kanae Takahashi, Kazuma Ito, Manabu Shiozawa, Kenta Iguchi, Takashi Akiyoshi, Takefumi Yoshida, Masataka Ikeda, Eiji Shinto, Yasuyuki Takamizawa, Yoichi Ajioka, Hirotoshi Kobayashi, Yukihide Kanemitsu   +13 more
wiley   +1 more source

Estimation in interval censored data

, 2020
Interval censored failure time data occur in many areas including medicine, economics, zoology, psychology, sociology and engineering. In such studies, the variable of interest is often not exactly observed, but known to fall within some interval.
openaire   +1 more source

Survival Models with Interval Censored Data

, 2020
Sansürleme, sağkalım analizi diğer istatistiksel yöntemlerden ayıran en önemli özelliktir. Sansürleme türleri ise sağdan, soldan ve aralıklı sansürleme olarak sınıflandırılmaktadır. Sağkalım analizinde kullanılan modellerin çoğu gözlemlerin sağdan sansürlü olduğu veri kümeleri için geliştirilmiştir.
ERÖZ, İlknur, ATA, Nihal
openaire   +1 more source