Is it possible to get the count() for "forums, "threads" and "messages" extrapolating from the following query? Thanx for helping a newb.

select
sf_conferences.id,
sf_conferences.name
from
((#variables.tableprefix#conferences
left JOIN sf_forums ON sf_conferences.id=sf_forums.conferenceidfk)
left JOIN sf_threads ON sf_forums.id = sf_threads.forumidfk)
left JOIN sf_messages ON sf_threads.id = sf_messages.threadidfk
GROUP BY
sf_conferences.id,
sf_conferences.name