 The study found that the hypoxia-altitude simulation test had a moderate accuracy in predicting altitude-related adverse health effects in chronic obstructive pulmonary disease copped patients. The test had a sensitivity of 46 percent and a specificity of 84 percent, which means it can accurately identify those who will experience arihi, but may miss some cases. Therefore, this should be used as a screening tool to help identify those at risk of developing arihi when traveling to high altitudes.