Discussion on “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, vol. 76, pp. 1251–1254

Abstract

size 𝑆𝑁𝐷 = 𝑌∕𝑠𝑑(𝑌), where Y is the outcome of interest and 𝑠𝑑(𝑌) is its standard deviation.The concept comes from the social sciences and is used to correct for differences in

Authors 1

1. Hans C. van Houwelingen corresponding Aachen Department of Biomedical Data Sciences Leiden University Medical Center Leiden The Netherlands Department of Biomedical Data Sciences

   Leiden University Medical Center

   Affiliation as printed

   Department of Biomedical Data Sciences (retired) Leiden University Medical Center Leiden The Netherlands

   Department of Biomedical Data Sciences (retired), Leiden University Medical Center, Leiden, The Netherlands