Results 1 to 10 of about 2,349,452 (293)

MRI lesions in SpA: a comparison with noninflammatory back pain using propensity score adjustment method [PDF]

Therapeutic Advances in Musculoskeletal Disease, 2022
Background: Magnetic resonance imaging (MRI) is important in the management of axial spondyloarthritis (SpA). However, many MRI lesions are not exclusive to axial SpA.
Ho Yin Chung, Jin Xian Huang, Kam Ho Lee, Helen Hoi Lun Tsang, Chak Sing Lau, Shirley Chiu Wai Chan   +5 more
doaj   +2 more sources

Estimating General Parameters from Non-Probability Surveys Using Propensity Score Adjustment

Mathematics, 2020
This study introduces a general framework on inference for a general parameter using nonprobability survey data when a probability sample with auxiliary variables, common to both samples, is available.
Luis Castro-Martín, María del Mar Rueda, Ramón Ferri-García   +2 more
doaj   +3 more sources

Propensity score adjustment using machine learning classification algorithms to control selection bias in online surveys. [PDF]

PLoS ONE, 2020
Modern survey methods may be subject to non-observable bias, from various sources. Among online surveys, for example, selection bias is prevalent, due to the sampling mechanism commonly used, whereby participants self-select from a subgroup whose ...
Ramón Ferri-García, María Del Mar Rueda   +1 more
doaj   +2 more sources

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

Mathematics, 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, Maria del Mar Rueda, Ramón Ferri-García   +2 more
doaj   +3 more sources

The Association Between Congestive Heart Failure and One-Year Mortality After Surgery in Singaporean Adults: A Secondary Retrospective Cohort Study Using Propensity-Score Matching, Propensity Adjustment, and Propensity-Based Weighting

Frontiers in Cardiovascular Medicine, 2022
BackgroundAlthough congestive heart failure (CHF) is considered a risk factor for postoperative mortality, reliable quantification of the relationship between CHF and postoperative mortality risk is limited.
Yong Han, Haofei Hu, Yufei Liu, Qiming Li, Zhiqiang Huang, Zhibin Wang, Dehong Liu, Longning Wei   +7 more
doaj   +1 more source

The impact of moderator by confounder interactions in the assessment of treatment effect modification: a simulation study

BMC Medical Research Methodology, 2022
Background When performed in an observational setting, treatment effect modification analyses should account for all confounding, where possible. Often, such studies only consider confounding between the exposure and outcome.
Antonia Mary Marsden, William G. Dixon, Graham Dunn, Richard Emsley   +3 more
doaj   +1 more source

Comparison of Propensity Score Weighting Methods to Remove Selection Bias in Average Treatment Effect Estimates

International Journal of Turkish Education Sciences, 2023
In this Monte Carlo simulation study, the performance of six different propensity score methods implemented through weighting cases was investigated: inverse probability of treatment weighting, truncated inverse probability of treatment weighting ...
Sungur Gürel, Walter Lana Leite
doaj   +1 more source

Adding propensity scores to pure prediction models fails to improve predictive performance [PDF]

PeerJ, 2013
Background. Propensity score usage seems to be growing in popularity leading researchers to question the possible role of propensity scores in prediction modeling, despite the lack of a theoretical rationale. It is suspected that such requests are due to
Amy S. Nowacki, Brian J. Wells, Changhong Yu, Michael W. Kattan   +3 more
doaj   +2 more sources

Effect of the Extent of Resection on Survival Outcome in Glioblastoma: Propensity Score Approach

Brazilian Neurosurgery, 2021
Objective To evaluate the effectiveness of the extent of resection (EOR) on survival outcome using propensity score-based approaches. Materials and Methods A retrospective cohort study was performed in patients with newly diagnosed ...
Thara Tunthanathip, Suphavadee Madteng
doaj   +1 more source

Will land circulation sway "grain orientation"? The impact of rural land circulation on farmers' agricultural planting structures.

PLoS ONE, 2021
This study calculates the effect of different types of land circulation on farmers' decision-making regarding agricultural planting structure, using field survey data involving 1,120 households in Hubei province, China, and PSM (propensity score matching)
Jiquan Peng, Juan Chen, Chen Su, Zhifeng Wu, Liu Yang, Wenji Liu   +5 more
doaj   +1 more source