\ddag
The symbol \ddag is used to denote a double dagger, often used in documents to indicate a footnote or reference that is secondary to the primary footnote marked by a single dagger (\dag).
Indicating a secondary footnote or reference in a document.
This is a statement\ddag
Referring to additional information or a secondary note related to Table 1.
See Table 1\ddag for more details
Citing a secondary source or additional information related to the statement.
The results were significant\ddag, as shown in previous studies