Beta Agonist Lung Injury TrIal-2 (BALTI-2) trial protocol: A randomised, double-blind, placebo-controlled of intravenous infusion of salbutamol in the acute respiratory distress syndrome

Table 2 Required sample sizes for 80 and 90% power, RR 0.80, 3% losses

Placebo mortality	Salbutamol mortality	80% power	90% power
40%	32%	1164	1558
42%	33.6%	1076	1440
44%	35.2%	998	1334
46%	36.8%	926	1238
48%	38.4%	860	1148
50%	40%	798	1068

ISSN: 1745-6215