Generalized Egger tests for detecting publication bias in meta-analysis for diagnostic accuracy test are implementable. These publication bias tests are generally more powerful compared with the conventional univariate publication bias tests and can incorporate correlation information between the outcome variables.
Please download "MVPBT_1.1-1.tar.gz" and install it by R menu: "packages" -> "Install package(s) from local files...".
Download: please click this link
Manual: please click this link
Noma, H. (2020). Discussion of “Testing small study effects in multivariate meta-analysis” by Chuan Hong, Georgia Salanti, Sally Morton, Richard Riley, Haitao Chu, Stephen E. Kimmel, and Yong Chen. Biometrics 76: 1255-1259. (https://onlinelibrary.wiley.com/doi/abs/10.1111/biom.13343)
Noma, H. (2022). MVPBT: R package for publication bias tests in meta-analysis of diagnostic accuracy studies. arXiv:2209.07270. (https://arxiv.org/abs/2209.07270)