Patients with ARDS or who required prolonged ventilation (greater than seven days) in the ICU tend to have a lower quality of life and more weakness at discharge than those without ARDS or the need for prolonged ventilation. Psychiatric illness is also widely prevalent after ARDS, with 17 to 43 percent of survivors reporting depression, 21 to 35 percent reporting posttraumatic stress disorder, and 23 to 48 percent reporting anxiety.46 Risk factors for poor outcomes include a higher APACHE II score, acquisition of illness in the ICU, longer time to resolution of lung and multiorgan dysfunction, and use of systemic corticosteroids.