The study was renewed several times to provide for continued data collection and follow-up, including new polysomnograms. The formal funding for SHHS sites, which ended as of August 31, 2008, was followed by a one-year no- cost extension. Funding ceased for the participating sites as of August 31, 2009, but the Data Coordinating Center and the PSG Reading Center were granted additional no-cost extensions to support additional data collection from the parent cohorts to obtain follow up through 2009, 2010 or 2011 (depending on the cohort), on all-cause mortality, incident CVD, and stroke. The updated results were presented in a session at the ATS 2012 meetings in San Francisco.