تصفح حسب المؤلف "Chu, Haitao"
-
Double-zero-event studies matter: A re-evaluation of physical distancing, face masks, and eye protection for preventing person-to-person transmission of COVID-19 and its policy impact
Mengli, Xiao; Lin, Lifeng; Hodges, James S.; Xu, Chang; Chu, Haitao ( Elsevier , 2021 , Other)In a recent timely systematic review, Chu et al. [1] assessed the effectiveness of face masks, eye protection, and physical distancing for preventing COVID-19. Because the sample sizes are not large, especially in some ... -
Empirical Comparisons of 12 Meta-analysis Methods for Synthesizing Proportions of Binary Outcomes
Lin, Lifeng; Xu, Chang; Chu, Haitao ( Springer , 2021 , Article)Background: Meta-analysis is increasingly used to synthesize proportions (e.g., disease prevalence). It can be implemented with widely used two-step methods or one-step methods, such as generalized linear mixed models ... -
Laplace approximation, penalized quasi-likelihood, and adaptive Gauss-Hermite quadrature for generalized linear mixed models: Towards meta-analysis of binary outcome with sparse data
Ju, Ke; Lin, Lifeng; Chu, Haitao; Cheng, Liang Liang; Xu, Chang ( BMC , 2020 , Article)© 2020 The Author(s). Background: In meta-analyses of a binary outcome, double zero events in some studies cause a critical methodology problem. The generalized linear mixed model (GLMM) has been proposed as a valid ... -
P-value driven methods were underpowered to detect publication bias: analysis of Cochrane review meta-analyses
Furuya-Kanamori, Luis; Xu, Chang; Lin, Lifeng; Doan, Tinh; Chu, Haitao; Thalib, Lukman; Doi, Suhail A R... more authors ... less authors ( Elsevier , 2019 , Article)To investigate the effect of number of studies in a meta-analysis on the detection of publication bias using p-value driven methods. The proportion of meta-analyses detected by Egger's, Harbord's, Peters', and Begg's tests ...