Table 3 Means (SD) of study questionnaires at baseline and 6-month follow-up

PHQ9

Baseline

8.00 (6.21)

11.33 (8.76)

6 months

5.71 (4.82)

8.67 (8.36)

 − 1.60 (− 9.45 to 6.26)

0.02 (− 6.26 to 9.45)

Mean change

2.29 (9.27)

2.67 (4.37)

PAID

Baseline

32.50 (23.95)

46.67 (22.37)

6 months

27.14 (15.18)

30.42 (20.34)

2.95 (− 15.13 to 21.02)

0.013 (− 21.02 to 15.13)

Mean change

6.61 (15.91)

16.25 (20.84)

ITAS negative

Baseline

46.00 (10.84)

52.50 (10.84)

6 months

40.57 (6.90)

44.17 (8.98)

 − 1.09 (− 10.29 to 8.10)

0.007 (− 8.10 to 10.29)

Mean change

5.12 (10.45)

8.33 (8.98)

ITAS positive

Baseline

14.63 (2.45)

14.83 (2.99)

6 months

15.00 (2.00)

13.17 (5.31)

1.70 (− 2.46 to 5.86)

0.076 (− 5.86 to 2.46)

Mean change

0.00 (3.00)

1.66 (3.50)

ITAS total

Baseline

55.38 (9.98)

61.67 (11.60)

6 months

49.57 (8.22)

55.00 (5.62)

 − 2.45 (− 9.83 to 4.92)

0.052 (− 4.92 to 9.83)

Mean change

5.14 (8.36)

6.67 (8.24)