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341
Association of ABO blood groups with venous thrombosis recurrence in middle-aged patients: insights from a weighted Cox analysis dedicated to ambispective design
Published 2023-04-01“…When the studied risk factors are independent of time, including both pre- and post-inclusion events in the analyses, generally referred to as relying on an ambispective design, increases the statistical power but may lead to a selection bias. In the field of venous thromboembolism (VT), ABO blood groups have been the subject of extensive research due to their substantial effect on VT risk. …”
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342
Broad consent in the emergency department: a cross sectional study
Published 2025-02-01“…The BC-ED (Broad Consent in the Emergency Department) project uniquely investigated the implementation of MII-BC in EDs, exploring feasibility, selection bias and patients’ perceptions of voluntariness, information recall, motivation, and satisfaction. …”
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343
Retirement and elderly health in China: Based on propensity score matching
Published 2022-11-01“…BackgroundThe relationship between retirement and health is important to the formulation of retirement related policies but is a controversial topic, perhaps because selection bias has not been well-addressed in previous studies through traditional analysis methods. …”
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344
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Does Attending a Public or Private University Make a Difference for Students in Colombia?
Published 2017-03-01“…We test whether the differences in the national exam that measures student performance (Saber Pro) between public and private institutions is statistically significant by employing a propensity matching score approach based on common financial characteristics to avoid issues of selection bias. The results indicate that the difference in student performance between public and private institutions is positive and statistically significant. …”
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346
Do durum wheat producers benefit of vertical coordination?
Published 2017-09-01“…A propensity score-matching model was implemented to take account of the selection bias due to observed individual heterogeneity. …”
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347
High-throughput detection of DNA double-strand breaks using image cytometry
Published 2015-01-01“…Assessment of γH2AX expression for studying DNA double-strand break formation is often performed by manual counting of foci using immunofluorescence microscopy, an approach that is laborious and subject to significant foci selection bias. Here we present a novel high-throughput method for detecting DNA double-strand breaks using automated image cytometry assessment of cell average γH2AX immunofluorescence. …”
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348
Does financial liberalization spur economic growth? A meta-analysis
Published 2024-01-01“…We also identify the presence of publication-selection bias in the literature and, after adjusting for this bias, we conclude that stock market liberalization and comprehensive financial market liberalization are the most effective forms of financial sector liberalization for stimulating economic growth. …”
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349
Labor Market Returns to Education and English Language Skills in the People's Republic of China: An Update
Published 2019-03-01“…These results are robust to controls for height, body mass index, and English language skills, and to corrections for sample selection bias. Our findings, together with a critical review of existing studies, confirm the growing significance of human capital as a determinant of labor market performance in postreform PRC.…”
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350
Aid and conflict: Evidence from Chinese aid
Published 2022-06-01“…Our results are robust when considering the possible sample selection bias and different types of international aid. …”
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351
Estimating cost efficiency of Turkish commercial banks under unobserved heterogeneity with stochastic frontier models
Published 2016-12-01“…To select the cost function with the most appropriate inefficiency correlates, we first adopt a search algorithm and then utilize the model averaging approach to verify that our results are not exposed to model selection bias. Overall, our empirical results reveal that cost efficiencies of Turkish banks have improved over time, with the effects of the 2008 and 2010 crises remaining rather limited. …”
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352
Formal Registration and Informal Firms in Cambodia
Published 2023-03-01“…This paper constructs a nationally representative panel data set on registered and unregistered establishments in Cambodia by using the Economic Census in 2011 and the Inter-censal Economic Survey in 2014; the Economic Census surveyed all nonfarm establishments and enterprises without any establishment-size threshold, which served as a credible sample frame for the Inter-censal Economic Survey. To mitigate selection bias, I employ a difference-in-differences method combined with propensity-score matching and a propensity-score-weighted regression method. …”
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353
Housing difficulties, health status and life satisfaction
Published 2022-12-01“…Our estimated results are robust to unobservable household characteristics, model misspecification and selection bias. We also provide explanations for the negative effects of housing difficulties on life satisfaction through which housing difficulties are detrimental to physical and psychological health. …”
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354
Who benefits from outsourcing? A study of one italian region’s small firms
Published 2013-05-01“…These models allow us to incorporate a firm’s outsourcing propensity into the impact evaluation, by adjusting for possible selection bias (Amemija 1985; Schnedler 2005). Our findings show that outsourcing has a positive effect on both productivity and, in particular, on profitability, thus confirming that Italian small clothing businesses tend to place immediate profit before productivity and growth.…”
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355
Follow Me Going Out: Cross-Border Investment of Domestic Venture Capital and Overseas Listing of Portfolio Companies
Published 2023-01-01“…The findings remain robust after using the instrumental variable method to eliminate endogeneity, the Heckman two-stage regression method to eliminate sample selection bias, and the exclusion of a portion of the sample for reregression. …”
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356
Agro-food quality certification, agricultural organizations, and farm performance: evidence from vegetable farmers in China
Published 2023-12-01“…A dataset of 410 vegetable farmers in China is applied, and the propensity score matching (PSM) method is employed in the empirical analysis to address selection bias and reverse causality. Our study finds that, overall, the adoption of certification does not significantly influence farm performance. …”
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357
Does Attending a Public or Private University Make a Difference for Students in Colombia?
Published 2017-06-01“…We test whether the differences in the national exam that measures student performance (Saber Pro) between public and private institutions is statistically significant by employing a propensity matching score approach based on common financial characteristics to avoid issues of selection bias. The results indicate that the difference in student performance between public and private institutions is positive and statistically significant. …”
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358
The application of propensity score methods in observational studies
Published 2024-04-01“…Furthermore, we simulate three scenarios, and the results demonstrate the superiority of propensity score methods over methods such as linear regression in addressing selection bias.DiscussionTherefore, it is essential to thoroughly consider the characteristics of the data and select appropriate methods to ensure reliable conclusions in practical data analysis.…”
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359
Rural Households' Credit Access and Loan Amount in Wa Municipality, Ghana
Published 2017-01-01“…In the absence of potential sample selection bias, a probit model and Ordinary Least Squares regression were estimated. …”
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360
Does strength of tenure rights among the urban poor improve household economies? Contrasting Matero and George in Lusaka city
Published 2018-01-01“…Multiple regression analysis is utilized and propensity score matching methods are employed to overcome selection bias. The results show that leasehold rights are associated with significantly higher property values and less participation in income-generating activities. …”
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