Reconsidering the inclusion of Ladapo’s work in the meta-analysis: Validity concerns and implications

ABSTRACT

This is a response to Marchand & Masoud’s response letter regarding my criticism “Response to Dr. Somovilla del Saz’s letter to the editor regarding “Risk of all-cause and cardiac-related mortality after vaccination against COVID-19: A meta-analysis of self-controlled case series studies.”” The response is a defense of the initial criticism to the paper regarding the validity of the inclusion of Ladapo´s paper.

KEYWORDS:

• Meta-analysis
• all-cause mortality
• cardiac-related mortality
• covid vaccines
• covid-19

This article responds to:

Questionable robustness in the findings of a meta-analysis

Risk of all-cause and cardiac-related mortality after vaccination against COVID-19: A meta-analysis of self-controlled case series studies

Errors and issues in risk of all-cause and cardiac-related mortality after vaccination against COVID-19: A meta-analysis of self-controlled case series studies

Response to Mr. Somovilla del Saz’s letter to the editor regarding “Risk of all-cause and cardiac-related mortality after vaccination against COVID-19: A meta-analysis of self-controlled case series studies”

Acknowledgments

The author acknowledges the valuable guidance and support from individuals; however, no external funding or assistance was received.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Author contributions statement

Borja Somovilla del saz was solely responsible for all aspects of this letter.

Additional information

Funding

The author(s) reported there is no funding associated with the work featured in this article.