. 2017 Aug 18;91(1):63–78. doi: 10.1111/papt.12145

Table 3.

Change in BDI‐II, PHQ‐9, and IES, if that change was statistically reliable and clinically significant and if any change was maintained at follow‐up

Participant	IES‐r pre	IES‐r post	Change	IES‐r F/U	PHQ‐9 pre	PHQ‐9 post	Change	PHQ‐9 F/U	BDI‐II pre	BDI‐II post	Change	BDI‐II F/U
1	13	4	−9	8	17	7	−10^a ^, ^b	4^c	33	10	−23^a ^, ^b	6^c
3	11	5	−6	12	10	3	−7^a ^, ^b	6^c	21	2	−19^a ^, ^b	8^c
4	50	13	−37^a ^, ^b	15^c	24	11	−13^a ^, ^b	7^c	48	29	−19^a ^, ^b	27^c
5	54	12	−42^a ^, ^b	0^c	19	4	−15^a ^, ^b	5^c	43	9	−34^a ^, ^b	2^c
6	19	68	49^a ^, ^b	28	10	25	15^a ^, ^b	13	26	5	−24^a ^, ^b	25
7	45	20	−35^a ^, ^b	22^c	18	6	−12^a ^, ^b	7^c	34	17	−17^a ^, ^b	8^c
8	33	–	Drop out	–	17	–		–	28	–		–
10	25	24	−1	–	13	14	1	–	23	28	5	–
11	15	1	−14	20	10	6	−4	4^c	24	0	−24^a ^, ^b	12^c
12	35	13	−22^a ^, ^b	–	17	5	−12^a ^, ^b	–	37	17	−20^a ^, ^b	–
Mean (SD)	30.0 (15.9)	17.8 (20.2)	−13.0 (27.5)	11.7 (10.5)	15.5 (4.6)	9.0 (6.9)	−6.3 (9.4)	6.6 (3.1)	31.7 (9.0)	13.0 (10.6)	−19.4 (10.4)	12.6 (9.7)

IES‐r = Impact of Event Scale – revised; PHQ‐9 = Patient Health Questionnaire – 9 items; BDI‐II = Beck Depression Inventory (v.2).

^aChange is statistically reliable, ^bchange is clinically significant, and ^cpre‐/post‐improvement in symptoms maintained for improved at 3‐month follow‐up (F/U).