Function To Indicate Whether An Expression Returns A Non-zero Result (2007)

I have this COUNTIFS expression buried in a larger formula:

COUNTIFS(Table[C7],Table[C7]&"",Table[C21],">=1")

and it always returns a value of zero or some positive integer.

I'm now looking for a little "function" that I can wrap around this expression that will:

A) indicate any non-zero result as 1 or TRUE

and

B) indicate any zero result as 0 or FALSE

Something like...

AREYOUNONZERO( (COUNTIFS(Table[C7],Table[C7]&"",Table[C21],">=1") )

I'm sure there's a fairly efficient way to do this... but I'm totally stumped at the moment!