The mean age in the control group was 61.21 and in the intervention group was 60.11 years. The majority in both groups were male, in stage 3 of the disease, and ex-smoker. The mean pack/year in the control group was 33.14 and in the intervention group was 33.42. More than two-thirds of both groups have a comorbidity, and cardiovascular disease was the common comorbidity. There were no significant differences between groups in age, sex, BMI, smoking status, pack/year, stage, comorbidity, cardiovascular diseases, metabolic diseases, respiratory diseases, other diseases, CAT score, and mMRC Score.
The mean anxiety score in the control group was 10.17 ± 5.06 and in the intervention group was 9.66 ± 5.03. There were no significant differences between groups in the anxiety domain of HADS at baseline (p=630).
The mean depression score in the control group was 8.66 ± 4.76, and in the intervention group was 8.20 ± 4.67 at baseline; there was no significant difference between groups (p=0.647).
CONSORT 2010 Flow Diagram
Assessed for eligibility (n=341)
Excluded (n=241)
Not meeting inclusion criteria (n=177)
Decline to participate (n=64)
Randomized (n=100)
Allocated to control group (n=50)
Received routine care (n=50)
Allocated to intervention group (n=50)
Received routine care (n=50)
Received self-management education (n=50)
Lost to follow-up (n=6)
Lost to follow-up (n=3)
Analysed (n=44) ¨ Excluded from analysis (n=0)
Analysed (n=47) ¨ Excluded from analysis (n=0)
Six months later, the mean anxiety score in both groups decreased, and the control group was 9.85 ± 5.25. The intervention group was 7.14 ± 4.32, and there were significant differences between groups, and the intervention group was lower than the control group (p=0.009). Twelve months later, the mean anxiety domain score of HADS was 9.62 ± 4.93 in the control group and 7.89 ± 4.55 in the intervention group. Although the anxiety score was decreased in the intervention group than in the control group, there were no significant differences between anxiety score groups (p=0.086).
The mean depression score was 8.91 ± 4.80 in control and 6.25 ± 3.76 in the intervention groups six months later and 9.04 ± 4.86 in the control group, and 6.23 ± 3.67 in the intervention group twelve months later. There were significant differences between groups at both times (p=0.004 and 0.002, respectively).