By themselves , they have no effect on overall one - year mortality .
While inhaled corticosteroids ( ICSs ) have not shown benefit for people with mild COPD , they decrease acute exacerbations in those with either moderate or severe disease .
By themselves , people have no effect on overall one - year mortality .
While inhaled corticosteroids ( ICSs ) have not shown benefit for people with mild COPD , they decrease acute exacerbations in those with either moderate or severe disease .