Before revision:  Patients  who were taking   -AR antagonists for other conditions had lower probability of needing invasive mechanical ventilationand dying in the hospital compared to non-users , both in ARDS (adjusted OR = 0.59 , 95\% CI 0.34-0.95 , p = 0.021)and in pneumonia (adjusted OR = 0.77, 95\% CI 0.62-0.94, p = 0.007) .
After revision:  Patients who were taking  \alpha_1 -AR antagonists for other conditions had lower probability of needing invasive mechanical ventilationand dying in the hospital compared to non-users , both in ARDS (adjusted OR = 0.59 , 95\% CI 0.34-0.95 , p = 0.021)and in pneumonia (adjusted OR = 0.77, 95\% CI 0.62-0.94, p = 0.007) .