To their corporate policy credit, they do conduct audits. But that has not stopped the practice completely.
http://www.theguardian.com/technology/2013/jan/25/apple-child-labour-supply
That said, Nike has no comment.
" The report follows a series of worker suicides over working conditions at Foxconn, the Taiwanese company that assembles must-have products such as the iPad and iPhone, and lethal explosions at other plants."
Those suicides occurred in 2010 and involved a suicide rate that was far less than the overall suicide rate for similar age cohorts in the Chinese population in general, less than 1 per 100,000, and did not involve even ONE Apple assembly line worker. They were at a plant making Microsoft Xbox, Sony Playstations, HP Computers and Nokia cellular phones. That is the level of accuracy of that report.
The audit referred to went back over SEVEN YEARS of Apple's supply chain and found only 70 incidents among 1.7 million workers involving a total of 106 children under the age of 16, ALL of which had used false IDs to get themselves hired. It was NOT an institutional effort by Apple or the companies contracted to do so. The one instance where it was, Apple pulled an over $2 billion contract and awarded it to the next lower bidder! It can be very expensive for a contract company to thwart the contract provisions about child labor with Apple.