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find Author "HUANG Qingyuan" 1 results
  • A randomized controlled trial of supervised smoking cessation on CAT, mMRC, SGRQ score and readmission risk in COPD patients

    ObjectiveTo investigate the effect of supervised smoking cessation program on COPD Assessment Test (CAT), modified British Medical Research Council (mMRC) and St George’s Respiratory Questionnaire (SGRQ) score and readmission risk in smoking patients with chronic obstructive pulmonary disease (COPD). Methods A total of 200 patients with COPD were enrolled in the study from the Department of Respiratory and Critical Care Medicine of Ganmei Hospital Affiliated to Kunming Medical University (The First People’s Hospital of Kunming) from April 2018 to December 2019. They were randomized divided into a control group (100 cases) and a supervision group (100 cases). The control group stopped smoking by their own will, and the supervision group was interfered on the basis of self-quit. Repeated measure analysis of variance was used to compare the CAT, mMRC, SGRQ scores and hospitalization times of the enrolled subjects before intervention, at the end of 6 months and 12 months of intervention, to evaluate the impact of supervised smoking cessation on the quality of life in smoking patients with COPD. Results CAT scores and mMRC scores were lower in the supervision group than in the control group after 6 months of follow-up compared with the baseline enrollment. There was a significant decrease in the supervision group, from 2.39 to 0.58 respectively; the decrease of control group was not obvious, from 0.15 to 0.01 respectively. After 12 months of follow-up, compared with enrollment and after 6 months of follow-up, the supervision group had a significant decrease, and the CAT score decreased from 4.45 to 2.06, respectively. The mMRC scores decreased by 1.03 and 0.45 points, respectively. The CAT scores of the control group were increased by 0.02 and 0.17 points, respectively, which showed an opposite trend to that of the supervision group. The mMRC score was decreased to a certain extent by 0.16 and 0.15 points, respectively, which was significantly less than that of the supervision group. The differences were statistically significant (P<0.05). After 1 year, compared with enrollment, the average SGRQ score decreased in both the supervision group and the control group. SGRQ symptom score decreased by 4.95 points and 3.51 points respectively; SGRQ activities decreased by 4.01 points and 10.00 points respectively; SGRQ effect score decreased by 5.33 points and 8.65 points respectively; SGRQ total scores were decreased by 6.26 points and 8.95 points respectively. And the number of cigarettes was reduced by 19.01 and 17.15 respectively. The differences were statistically significant (P<0.05). The decreasing range of CAT score, mMRC score, SGRQ symptom score and smoking counts in the supervision group was significantly higher than that in the control group. Considering the supervision to quit smoking can well reflect the improvement of clinical symptoms in COPD patients. In terms of the times of hospitalization, the risk of readmission was lower in the supervision group. Conclusions The mMRC, CAT and SGRQ scores showed that supervised smoking cessation could better improve the quality of life and reduce the risk of readmission in smoking patients. Lung function and quality of life were significantly better after intervention than before.

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