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. 2020 Apr 1;30:11. doi: 10.1038/s41533-020-0167-1

Table 4.

A summary of the main findings for quality of life.

Author (year) sample size Form of QoL assessment reported Group allocation
Intervention Control
Liu (2008) Intervention N = 24, Control N = 24 SF-12 PCS, mean (SD); p < 0.001

B: 38.7 (8.82)

F: 47.9 (7.35)

B: 40.1 (6.37)

F: 30.9 (10.78)

Halpin (2011) Intervention N = 40, Control N = 39 SGRQ, mean (SD); p = NS

B: 52.4 (16.44)

F: 49.7 (15.18)

B: 53.6 (14.99)

F: 51.5 (14.99)

Chau (2012) Intervention N = 22, Control N = 18 CRQ (Emotion), mean (SD); p = NS

B: 4.84 (1.47)

F: 4.92 (1.40)

B: 5.24 (1.42)

F: 5.61 (1.17)

CRQ (Mastery), mean (SD); p = NS

B: 4.60 (1.43)

F: 4.61 (1.62)

B: 4.94 (1.16)

F: 4.88 (1.27)

Nguyen (2013) Intervention N = 43, Control N = 41 CRQ (Total), mean (SD); p = NS

B: 96.4 (19.91)

F: 104.8 (23.92)

B: 96.2 (19.76)

F: 98.4 (24.34)

Pinnock (2013) Intervention N = 8, Control N = 8 SGRQ, mean (SD); p = NS

B: 68.6 (16.6)

F: 68.2 (16.3)

B: 68.0 (15.2)

F: 67.3 (17.3)

Tabak (2014-A) Intervention N = 12, Control N = 12 CCQ (Total), mean (SD); p = NS

B: 2.0 (0.90)

F: 1.8 (0.83)

B: 2.7 (0.94)

F: 2.3 (0.90)

Tabak (2014-B) Intervention N = 14, Control N = 16 CCQ (Total), mean (SD); p = NS

B: 2.0 (0.8)

F: 1.7 (0.5)

B: 1.8 (1.0)

F: 1.8 (0.6)

van der Weegen (2015) Intervention N = 65, Control N = 68 SF-36 (Physical), mean (SD); p = NS

B: 42.5 (11.1)

F: 44.1 (9.5)

B: 45.8 (9.4)

F: 45.8 (9.5)

SF-36 (Mental), mean (SD); p = NS

B: 48.2 (10.3)

F: 48.3 (11.7)

B: 50.1 (9.5)

F: 50.3 (8.3)

Vorrink (2016) Intervention N = 84, Control N = 73 CRQ (Emotion), mean (SD) or median (IQR); p = NS

B: 5.0 (1.1)

C: 0.09 (−0.07 to 0.24)

B: 4.8 (1.2)

C: 0.19 (−0.31 to 0.11)

CRQ (Mastery), mean (SD) or median (IQR); p = NS

B: 5.4 (1.1)

C: −0.1 (−0.31 to 0.11)

B: 5.3 (1.1)

C: −0.23 (−0.39 to −0.06)

Demeyer (2017) Intervention N = 171, Control N = 172 CCQ (Mental), median (IQR); p = NS

B: 1 (0–2.5)

F: 1 (0–2.5)

B: 1 (0–2)

F: 1 (0–2)

CCQ (Functional), median (IQR); p = 0.026

B: 1.5 (1–2.75)

F: 1.5 (1–2.75)

B: 1.5 (0.75– 2.75)

F: 1.75 (0.75– 2.75)

CCQ (Symptoms), median (IQR); p = NS

B: 1.75 (1.25– 2.5)

F: 1.75 (1.25– 2.5)

B: 1.75 (1.5–2.75)

F: 2 (1.25– 2.75)

Farmer (2017) Intervention N = 110, Control N = 56 SGRQ, mean (SD); p = NS

B: 56.4 (19.7)

F: 56.9 (19.5)

B: 55.5 (16.2)

F: 56.8 (20.9)

Orme (2018) Intervention N = 12, Control N = 11 CAT, mean (SD); p = NS

B: 22.6 (4.4)

F: 21.6 (5)

B: 24.5 (9.7)

F: 23.8 (11.1)

B baseline, C change, CCQ Clinical COPD Questionnaire, CRQ Chronic Respiratory Disease Questionnaire, F follow-up, SGRQ St. George's Respiratory Questionnaire, SF short form, CAT COPD Assessment Test, IQR interquartile range, SD standard deviation, NS nonsignificant.