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Figure 6: KMSA curves representing the time course of the probability of survival for ADO categories (long rank test; P< 0.001). ADO=Age, dyspnea and airflow obstruction, KMSA=Kaplan–Meier survival analysis, Gold=Global initiative for chronic obstructive lung disease

Figure 6: KMSA curves representing the time course of the probability of survival for ADO categories (long rank test; <i>P</i>< 0.001). ADO=Age, dyspnea and airflow obstruction, KMSA=Kaplan–Meier survival analysis, Gold=Global initiative for chronic obstructive lung disease