A study compared inhaled fluticasone (n=821), inhaled beclom…

A study compared inhaled fluticasone (n=821), inhaled beclomethasone (n=843), and inhaled budesonide (n=837) for the change in FEV1 among patients with. Which statistical test would be most appropriate to test for statistical significance of FEV1 between groups at the conclusion of the trial?