NBA players who set up charitable foundations reportedly don't always contribute as much as expected because of poor management and the high cost of fundraisers.

A report by The Salt Lake Tribune, which studied tax records filed by NBA player charities, analyzed 89 stand-alone NBA player charities and published the results on Sunday.

The charities reported combined revenue of at least $31 million between 2005 and 2007. But only about 44 cents of every dollar raised -- or just $14 million -- actually reached needy causes, far below the 65 cents most philanthropic groups view as acceptable.