Measures

Baseline (N = 140)

median (IQR)

Endline (N = 140)

median (IQR)

p-value (baseline vs. end line)

Min-max

Illness perceptions (IPQ)

Timeline chronic

2.6 (2.3 - 3.0)

3.0 (2.5 - 4.0)

<0.001

(1.0 - 5.0)

Consequences

2. (1.4 - 3.0)

1.4 (1.0 - 2.2)

<0.001

(1.0 - 5.0)

Personal control

2.0 (1.7 - 2.7)

2.0 (1.7 - 3.0)

0.166

(1.0 - 5.0)

Treatment control

4.3 (4.0 - 4.7)

4.7 (4.0 - 5.0)

0.080

(1.0 - 5.0)

Illness coherence

3.0 (1.0 - 4.0)*

3.0 (1.0 - 4.0)

0.179

(1.0 - 5.0)

Timeline cyclical

3.0 (3.0 - 3.5)

3.5 (3.0 - 4.5)

0.001

(1.0 - 5.0)

Emotional representations

2.5(1.8 - 3.6)

1.8 (1.0 - 3.3)

<0.001

(1.0 - 5.0)

Self-efficacy medication (MASES-R)

3.8 (3.4 - 4.0)

4.0 (3.8 - 4.0)

<0.001

(1.0 - 4.0)

Beliefs about medication (BMQ)

Necessity

20.0 (17.0 - 23.0)

23.0 (20.0 - 25.0)

<0.001

(5.0 - 25.0)

Concern

10.0 (9.0 - 14.0)

9.0 (7.0 - 13.0)

0.002

(5.0 - 25.0)