Fig. 5

The SGRQ score during the 24-month study period. a: total SGRQ score; b: SGRQ symptom score; c: SGRQ activity score; d: SGRQ effect score. *:P < 0.05, **: P < 0.01
The SGRQ score during the 24-month study period. a: total SGRQ score; b: SGRQ symptom score; c: SGRQ activity score; d: SGRQ effect score. *:P < 0.05, **: P < 0.01