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. 2021 Jan 22;118(3):23–30. doi: 10.3238/arztebl.m2021.0003

Table 3. Adjusted mean differences (AMD), including 95% CI, p-values, and Cohen’s d, between the intervention and control group at T2 and T3.

Outcome Time point AMD [95% CI] p Cohen’s d
ACT T2 6.00 [5.31; 6.69] < 0.001 1.69
T3 4.71 [3.99; 5.43] < 0.001 1.27
AQLQ total T2 1.32 [1.18; 1.45] < 0.001 1.78
T3 0.91 [0.76; 1.06] < 0.001 1.14
SGRQ total T2 –18.5 [–16.3; –20.8] < 0.001 –1.57
T3 –15.5 [–12.9; 18.1] < 0.001 –1.16
Exertional dyspnea T2 –2.38 [–2.77; –1.98] < 0.001 –1.17
T3 –2.28 [–2.71; –1.85] < 0.001 –1.03
PHQ-9 T2 –3.98 [–4.73; –3.24] < 0.001 –1.04
T3 –1.96 [–2.70; –1.23] < 0.001 –0.53
GAD-7 T2 –3.52[–4.23; –2.80] < 0.001 –0.95
T3 –2.01 [–2.74; –1.29] < 0.001 –0.54
heiQ-SK T2 0.58 [0.50; 0.67] < 0.001 1.28
T3 0.45 [0.35; 0.54] < 0.001 0.89
IPQ-7 T2 2.02 [1.66; 2.37] < 0.001 1.10
T3 1.79 [1.37; 2.22] < 0.001 0.81
IPQ-4 T2 0.94 [0.61; 1.28] < 0.001 0.53
T3 0.23 [–0.12; 047] 0.200 0.13
IPQ-3 T2 1.40 [0.99; 1.81] < 0.001 0.66
T3 0.59 [0.16; 1.01] 0.011 0.27
MARS-D*1 T2 0.55 [0.28; 0.82] < 0.001 0.41
T3 0.37 [0.08; 0.66] 0.003 0.24
WAS T2 1.18 [0.82; 1.53] < 0.001 0.65
T3 1.01 [0.66; 1.36] < 0.001 0.56
Odds ratio [95% CI]
SPE*2 T2 0.32 [0.20; 0.52] < 0.001
T3 0.73 [0.45;1.14] 0.163

ACT, Asthma Control Test (primary endpoint); AQLQ, Asthma Quality of Life Questionnaire;

CI, confidence interval; GAD-7, Generalized Anxiety Disorder Questionnaire; heiQ-SK, Health Education Impact Questionnaire: scale of Skills and techniques; IPQ, Illness Perception

Questionnaire; IPQ-3, How much control do you feel you have over your asthma?; IPQ-4, How much do you think your treatment can help with your asthma?; IPQ-7, How well do you feel you understand your asthma?; MARS-D, Medical Adherence Rating Scale; PHQ-9, Patient Health Questionnaire 9; SGRQ, St. George’s Respiratory Questionnaire; SPE, Subjective Prognosis of Employment Scale; WAS, Work Ability

Score *1 based on robust regressions; *2 based on ordinal logistic regressions