At 15:41 20/07/2015 +0000, Macfarlane, Alison wrote: >This is not the only paper on this subject: >Goddard AF, Lees P. Higher seniority staffing levels at weekend and >reduced mortality. BMJ 2012; 344:a67. >National Patient Safety Agency. Hospital at Night. Patient Safety Risk >Assessment Guide. London: NHS Modernisation Agency, 2005. That's certainly true, In addition to the two sources you mention, the first 7 references in the paper I linked to are on the same subject. I assumed that people would 'follow their noses' from that reference list without my drwaing attention to it! Kind Regards, John ---------------------------------------------------------------- Dr John Whittington, Voice: +44 (0) 1296 730225 Mediscience Services Fax: +44 (0) 1296 738893 Twyford Manor, Twyford, E-mail: [log in to unmask] Buckingham MK18 4EL, UK ---------------------------------------------------------------- You may leave the list at any time by sending the command SIGNOFF allstat to [log in to unmask], leaving the subject line blank.