Table 3 Estimated treatment effects adjusted for regression-to-the-mean (in brackets: 95 % confidence intervals) (n = 5.421)

 Emotional distress

11.3

−5.9 (−6.1 to −5.8)

−1.00 (−1.02 to −0.97)

<.0001

 Cognitive distress

8.0

−4.3 (−4.4 to −4.2)

−1.03 (−1.06 to −1.00)

<.0001

 Intrusiveness

9.8

−3.7 (−3.8 to −3.6)

−0.98 (−1.01 to −0.96)

<.0001

 Auditory perceptual difficulties

5.8

−2.4 (−2.5 to −2.3)

−0.61 (−0.63 to −0.59)

<.0001

 Sleep disturbances

2.8

−1.1 (−1.2 to −1.0)

−0.41 (−0.43 to −0.38)

<.0001

 Somatic complaints

1.9

−0.7 (−0.8 to −0.6)

−0.31 (−0.34 to −0.28)

<.0001

 Emotional distress

11.3

−4.2 (−5.2 to −2.3)

−0.67 (−0.96 to −0.39)

<.0001

 Cognitive distress

8.0

−2.5 (−7.9 to +2.9)

−0.60 (−1.90 to +0.70)

0.1126

 Intrusiveness

9.8

−3.4 (−4.1 to −2.7)

−0.90 (−1.09 to −0.72)

<.0001

 Auditory perceptual difficulties

5.8

−0.1 (−2.2 to +2.1)

−0.03 (−0.56 to +0.53)

0.9273

 Sleep disturbances

2.8

−0.9 (−2.0 to +0.2)

−0.33 (−0.72 to +0.07)

0.0702

 Somatic complaints

1.9

−0.4 (−2.8 to +2.0)

−0.17 (−1.27 to +0.94)

0.4013