The presence of contact details in registered records in 2008/2009 and 2012.

Legend Table 2: Percentages of records for which different aspects of contact details were present in 2008/2009 and 2012. * = significant difference between 2008/2009 and 2012. 1 Numbers of records for subcategories do not add up to total because in 2008/2009 for one trial no primary sponsor was registered and in 2012 for three trials no primary sponsor was registered.