Statistical analysis plan for the POLAR-RCT: The Prophylactic hypOthermia trial to Lessen trAumatic bRain injury-Randomised Controlled Trial oleh Jeffrey Presneill, Dashiell Gantner, Alistair Nichol, Colin McArthur, Andrew Forbes, Jessica Kasza, Tony Trapani, Lynnette Murray, Stephen Bernard, Peter Cameron, Gilles Capellier, Olivier Huet, Lynette Newby, Stephen Rashford, Jeffrey V. Rosenfeld, Tony Smith, Michael Stephenson, Dinesh Varma, Shirley Vallance, Tony Walker, Steve Webb, D. James Cooper, On behalf of the POLAR investigators and the ANZICS Clinical Trials Group