Results 31 to 40 of about 129,849 (273)

A sex-specific propensity-adjusted analysis of colonic adenoma detection rates in a screening cohort

open access: yesScientific Reports, 2021
The prevalence of colorectal adenoma and advanced adenoma (AA) differs between sexes. Also, the optimal age for the first screening colonoscopy is under debate.
Sarah Wernly   +8 more
doaj   +1 more source

Estimates of influenza vaccine effectiveness in primary care in Scotland vary with clinical or laboratory endpoint and method : experience across the 2010/11 season [PDF]

open access: yes, 2013
Aim: This study examines estimation of seasonal influenza vaccine effectiveness (VE) for a cohort of patients attending general practice in Scotland in 2010/11.
Kavanagh, Kimberley   +2 more
core   +3 more sources

Targeting Uric Acid and the Inhibition of Progression to End-Stage Renal Disease--A Propensity Score Analysis.

open access: yesPLoS ONE, 2015
BackgroundThe role of uric acid (UA) in the progression of chronic kidney disease (CKD) remains controversial due to the unavoidable cause and result relationship. This study was aimed to clarify the independent impact of UA on the subsequent risk of end-
Shunya Uchida   +11 more
doaj   +1 more source

Inference from Non-Probability Surveys with Statistical Matching and Propensity Score Adjustment Using Modern Prediction Techniques

open access: yesMathematics, 2020
Online surveys are increasingly common in social and health studies, as they provide fast and inexpensive results in comparison to traditional ones. However, these surveys often work with biased samples, as the data collection is often non-probabilistic ...
Luis Castro-Martín   +2 more
doaj   +1 more source

Sufficient Covariate, Propensity Variable and Doubly Robust Estimation

open access: yes, 2015
Statistical causal inference from observational studies often requires adjustment for a possibly multi-dimensional variable, where dimension reduction is crucial.
A.P. Dawid   +28 more
core   +1 more source

Breastfeeding shows a protective trend toward adolescents with higher abdominal adiposity [PDF]

open access: yes, 2014
Objective: The question of whether breastfeeding has a protective effect against the development of overweight or obesity later in life remains controversial, especially during adolescence.
De Henauw, Stefaan   +12 more
core   +3 more sources

Perceived fairness of pay among people with and without disabilities: a propensity score matched analysis of working Australians

open access: yesScandinavian Journal of Work, Environment & Health, 2015
OBJECTIVES: Equity and fairness at work are associated with a range of organizational and health outcomes. Past research suggests that workers with disabilities experience inequity in the workplace.
Allison Milner   +6 more
doaj   +1 more source

Non-response biases in surveys of schoolchildren: the case of the English Programme for International Student Assessment (PISA) samples [PDF]

open access: yes, 2012
We analyse response patterns to an important survey of schoolchildren, exploiting rich auxiliary information on respondents' and non-respondents' cognitive ability that is correlated both with response and the learning achievement that the survey aims to
Micklewright, John   +2 more
core   +1 more source

On the Use of Gradient Boosting Methods to Improve the Estimation with Data Obtained with Self-Selection Procedures

open access: yesMathematics, 2021
In the last years, web surveys have established themselves as one of the main methods in empirical research. However, the effect of coverage and selection bias in such surveys has undercut their utility for statistical inference in finite populations. To
Luis Castro-Martín   +3 more
doaj   +1 more source

Matching Methods for Causal Inference: A Review and a Look Forward [PDF]

open access: yes, 2009
When estimating causal effects using observational data, it is desirable to replicate a randomized experiment as closely as possible by obtaining treated and control groups with similar covariate distributions. This goal can often be achieved by choosing
Bloomberg School   +3 more
core   +3 more sources

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