Fig. 3.

Tornado diagram (indacaterol 150 μg versus tiotropium 18 μg). ^Low value for the mortality rate was 0 % for all severities. The high value was Moderate COPD 0.89 %, Severe COPD 1.78 % and Very Severe COPD 5.34 %. *Low value for the utility was Mild COPD 0.80, Moderate COPD 0.79, Severe COPD 0.77 and Very Severe COPD 0.73. The high value for the utility was Mild COPD 0.84, Moderate COPD 0.81, Severe COPD 0.78 and Very Severe COPD 0.76. CI confidence interval, COPD chronic obstructive pulmonary disease, FEV1 forced expiratory volume in 1 second, M moderate, NS non-severe, S severe, VS very severe