Showing 421 - 440 results of 2,869 for search '"selection bias"', query time: 0.65s Refine Results
  1. 421

    Event dependent overall survival in the population-based LIFE-Adult-Study by Samira Zeynalova, Katja Rillich, Eike Linnebank, Tina Stegmann, Michael Brosig, Matthias Reusche, Markus Loeffler

    Published 2022-01-01
    “…<h4>Results</h4> The mortality rate of the participants is approximately half the mortality rate expected for the german population. The selection bias in epidemiological studies needs to be considered whenever interpreting results of epidemiological cohort studies. …”
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    Article
  2. 422

    Screening for the high-need population using single institution versus state-wide admissions discharge transfer feed by Francis Salvador Balucan, Benjamin French, Yaping Shi, Sunil Kripalani, Eduard E. Vasilevskis

    Published 2023-10-01
    “…In VUMC’s high-need patients, there’s minimal selection bias when depending on same-site utilization. …”
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    Article
  3. 423

    Effect of polyethylene glycol 20 000 on protein extraction efficiency of formalin-fixed paraffin-embedded tissues in South Africa by Sophia Rossouw, Hocine Bendou, Liam Bell, Jonathan Rigby, Alan Christoffels

    Published 2021-12-01
    “…However, no differences were observed with regard to protein selection bias. We found that higher protein concentrations ( 10 µg) compromised the function of PEG. …”
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    Article
  4. 424

    Event dependent overall survival in the population-based LIFE-Adult-Study. by Samira Zeynalova, Katja Rillich, Eike Linnebank, Tina Stegmann, Michael Brosig, Matthias Reusche, Markus Loeffler

    Published 2022-01-01
    “…<h4>Results</h4>The mortality rate of the participants is approximately half the mortality rate expected for the german population. The selection bias in epidemiological studies needs to be considered whenever interpreting results of epidemiological cohort studies. …”
    Get full text
    Article
  5. 425

    Self-reported ill health in male UK Gulf War veterans: a retrospective cohort study by Doyle Pat, Maconochie Noreen, Simmons Rebecca

    Published 2004-07-01
    “…Many studies of post-Gulf morbidity are based on relatively small sample sizes and selection bias is often a concern. In a setting where selection bias relating to the ill health of veterans may be reduced, we: i) examined self-reported adult ill health in a large sample of male UK Gulf War veterans and a demographically similar non-deployed comparison group; and ii) explored self-reported ill health among veterans who believed that they had Gulf War syndrome.…”
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    Article
  6. 426

    Feasibility of collecting retrospective patient reported outcome measures (PROMs) in emergency hospital admissions by Esther Kwong, Nick Black

    Published 2018-11-01
    “…The extent to which this initial feasibility study was able to assess selection bias was limited to the age and sex of patients. …”
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    Article
  7. 427

    Effect of Jianpi Bushen formula for colon cancer patients who underwent adjuvant chemotherapy: Statistical analysis plan for a multicenter trial by Ruiming Zhao, Huijuan Cao, Lingyun Sun, Tong Zhang, Yun Xu, Shaohua Yan, Jun Mao, Jianping Liu, Yutong Fei, Yufei Yang

    Published 2023-01-01
    “…Further post-hoc analyses can be performed by referring to the SAP, and possible selection bias can be attenuated.…”
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    Article
  8. 428

    Performance of multiparametric MRI appears better when measured in patients who undergo radical prostatectomy by Wang NN, Fan RE, Leppert JT, Ghanouni P, Kunder CA, Brooks JD, Chung BI, Sonn GA

    Published 2018-11-01
    “…To quantify the impact of this selection bias on cancer yield according to PIRADS score, we analyzed data from 614 men with 854 lesions who underwent targeted biopsy from 2014 to 2018. …”
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    Article
  9. 429

    Physical activity trajectories at older age and all-cause mortality: A cohort study by Lamiaa Hassan, Peter Huhndorf, Rafael Mikolajczyk, Alexander Kluttig

    Published 2023-01-01
    “…In a sensitivity analysis we weighted the models to account for selection bias during follow-up. As a further sensitivity analysis, we excluded the first year of follow-up to account for reverse causation. …”
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    Article
  10. 430

    Implementation of a self-sampling HPV test for non-responders to cervical cancer screening in Japan: secondary analysis of the ACCESS trial by Misuzu Fujita, Kengo Nagashima, Minobu Shimazu, Misae Suzuki, Ichiro Tauchi, Miwa Sakuma, Setsuko Yamamoto, Hideki Hanaoka, Makio Shozu, Nobuhide Tsuruoka, Tokuzo Kasai, Akira Hata

    Published 2022-08-01
    “…To ensure autonomous participation with a minimum selection bias, opt-out consent was obtained from women who met the inclusion criteria, and written consent was obtained from those who underwent a self-sampling test. …”
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    Article
  11. 431

    Admission Grades as Predictors of Medical Students’ Academic Performance: A Cross-Sectional Study from Saudi Arabia by Ali Hendi, Mohammed S. Mahfouz, Ahmad Y. Alqassim, Anwar Makeen, Mohammed Somaili, Mohammed O. Shami, Abdellh A. Names, Alaa Darraj, Areej Kariri, Asma Ashiri, Abdulaziz H. Alhazmi

    Published 2022-10-01
    “…National studies are deemed essential to evaluate additional admission tests for medical school, an action that would minimize selection bias.…”
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    Article
  12. 432

    Physical activity trajectories at older age and all-cause mortality: A cohort study. by Lamiaa Hassan, Peter Huhndorf, Rafael Mikolajczyk, Alexander Kluttig

    Published 2023-01-01
    “…In a sensitivity analysis we weighted the models to account for selection bias during follow-up. As a further sensitivity analysis, we excluded the first year of follow-up to account for reverse causation.…”
    Get full text
    Article
  13. 433

    Sampling challenges in a study examining refugee resettlement by Thompson Sandra C, Sulaiman-Hill Cheryl MR

    Published 2011-03-01
    “…</p> <p>Conclusions</p> <p>Snowball sampling, with multiple initiation points to reduce selection bias, was necessary to locate and identify participants, provide reassurance and break down barriers. …”
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    Article
  14. 434

    Disentangling jet modification in jet simulations and in Z+jet data by Brewer, Jasmine, Brodsky, Quinn, Rajagopal, Krishna

    Published 2022
    “…In this work, we study and quantify the impact of this selection bias on jet substructure observables so as to isolate effects caused by the modification of the substructure of jets by quenching. …”
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    Article
  15. 435

    Assessment of prognostic models for patients with acute pulmonary embolism by Elias, A

    Published 2016
    “…The survey showed that emergency physicians still rely mostly on their own clinical judgment when deciding about early discharge or complete outpatient management and the case-ascertainment study showed that if case-ascertainment is incomplete, selection bias may mean that event rates and prognosis will be underestimated, prognostic models will be overoptimistic and the results of different studies cannot be compared, contrasted or combined reliably. …”
    Thesis
  16. 436

    DETERMINATION OF DARK MATTER TYPE BY X-RAY SOURCES STATISTICS by A.V. Tugay

    Published 2014-10-01
    “…The type of DM is inspected with the Xgal sample of 5021 X-ray emitting galaxies observed by XMM-Newton. The selection bias of this sample is also analyzed.…”
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    Article
  17. 437

    The price is right!? A meta-regression analysis on willingness to pay for local food. by Iryna Printezis, Carola Grebitus, Stefan Hirsch

    Published 2019-01-01
    “…An analysis of the distribution of WTP measures suggests the presence of publication selection bias that favors larger and statistically significant results. …”
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    Article
  18. 438

    Impact of improved seed and inorganic fertilizer on maize yield and welfare: Evidence from Eastern Ethiopia by Musa Hasen Ahmed

    Published 2022-03-01
    “…The study uses primary data of maize farmers and a multinomial endogenous switching regression model to account for selection bias. The findings show that combining the two technologies boosts maize yield and consumption expenditure significantly than adopting the technologies in isolation. …”
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    Article
  19. 439

    Exploiting the Relationship between Farm-Level Yields and County-Level Yields for Applied Analysis by Scott Gerlt, Wyatt Thompson, Douglas Miller

    Published 2014-08-01
    “…County-level yield data are used in applied research and crop insurance policy in place of farm-level yield data, which are likely sparse, not broadly representative, and subject to selection bias. We exploit the fact that county-level yields are the aggregate of farm-level yields to derive bounds that can be reduced to direct relationships between county- and farm-level yields under certain conditions. …”
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    Article
  20. 440

    Case-Control Studies by Alonso Soto, Aleksandar Cvetkovic-Vega

    Published 2020-01-01
    “…Some variants of this design, such as incident and nested case studies and nested case-control studies (within a cohort) can reduce the risk of selection bias. The basic concepts related to this type of studies are reviewed.…”
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    Article