key: cord-1012771-vczrxdfp authors: Santos de Sousa Fernandes, Matheus; Jurema Santos, Gabriela Carvalho title: Comment on “Association-19 of body mass index with COVID-19 related in-hospital death” Clinical Nutrition 2022 date: 2022-04-29 journal: Clin Nutr DOI: 10.1016/j.clnu.2022.04.027 sha: 6e062bb172dd446ea268eade6577a68bdcd1ca99 doc_id: 1012771 cord_uid: vczrxdfp nan This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. with the need for exclusion. Therefore, in the present study, the authors had to exclude 16 data considered incorrect for BMI (under 10 kg/m 2 and above 100 kg/m 2 ). We suggest in 17 future studies the inclusion of analyzes that attest to the reproducibility and quality of the 18 included data that can be applied among the evaluators [2, 3]. Second, we highlight the heterogeneity of the sample. The interference of different 20 sex hormones (estrogen, progesterone, and testosterone) on anthropometric variables 21 including BMI is widely known, which can lead to different health and disease outcomes. The performance of retrospective studies in cohorts with assessment of the sexes 23 separately and of sex hormone levels, can help in the broad understanding of the possible 24 association with BMI and mortality from COVID-19 in these subjects [4, 5] . Association of body mass index