Task: Question Answering
Input (English): Question: Regarding the treatment of patients with COPD, point out the FALSE answer: 
 Options:  <1> The regular use of ipratropium bromide has been associated with a decrease in mortality. <2> In a patient with arterial oxygen saturation of less than 90% and signs of pulmonary hypertension, the use of supplemental oxygen should be considered. <3> The regular use of inhaled corticosteroids does not influence the rate of deterioration of lung function. <4> Long-acting beta-adrenergic agonists provide symptomatic benefits similar to those of ipratropium bromide. <5> In patients hospitalized for exacerbation, corticosteroid therapy has been shown to shorten hospitalization time.
Output (English): 1