Table 4.

Changes in symptoms of depression, anxiety and PTSD during treatment

		T0	T1	T2	Difference T2-T0	Time-effect	Group-effect
		Median	Median	Median	Median	Wilcoxon	Mann-
		(Min,Max)	(Min,Max)	(Min,Max)	(Min,Max)	Signed rank	Whitney test
MDAS	D-CBT:	22.0	16.0	15.5	5.0	p < 0.001
Level of dental	(n = 48)	(12,25)	(6,24)	(5,25)	(-1,16)
anxiety	FHM:	21.0	16.0	15.0	5.5	p < 0.001
	(n = 48)	(14,25)	(5,25)	(5,25)	(-3,15)
HADS-D	D-CBT:	3.0	2.5	3.0	0.0	p = 0.669	p = 0.172
Symptoms of	(n = 48)	(0,16)	(0,16)	(0,16)	(-10,7)
Depression	FHM:	4.0	2.0	2.0	0.5	p = 0.015
	(n = 48)	(0,14)	(0,12)	(0,12)	(-3,7)
HADS-A	D-CBT:	9.0	8.0	7.0	1.0	p = 0.005	p = 0.968
Symptoms of	(n = 48)	(0,18)	(0,17)	(0,17)	(-7,9)
Anxiety	FHM:	9.0	7.0	7.0	1.0	p = 0.023
	(n = 48)	(1,20)	(1,18)	(0,17)	(-11,11)
PCL-S	D-CBT:	45.5	42.5	-	4.0	p = 0.200	p = 0.646
Symptoms of	(n = 26/22/17)	(18,67)	(19,69)	-	(-9,23)
PTSD	FHM:	41.5	38.5	-	0.0	p = 0.762
	(n = 28/24/19)	(18,74)	(17,57)	-	(-17,37)

Intention to treat analysis of symptoms of anxiety and depression before (T0) and after treatment (T1) as well as one year after treatment (T2). Completers analyses of symptoms of PTSD at T0 and T1. The median values of PCL-S are estimated based on a different number of patients at T0 and T1. (There was no registration of PCL-S values at T2). The number of patients is indicated chronologically entre parenthesis. The difference is calculated between T2 and T0 when measures were available for T2. D-CBT: dentist-administered cognitive behavioural therapy. FHM The four habits model/midazolam, MDAS Modified dental anxiety scale, HADS-A Hospital anxiety and depression scale, anxiety subscale, HADS-D Hospital anxiety and depression scale, depression subscale, PCL-S The PTSD-checklist for DSM-IV, specific version, PTSD Post-traumatic stress disorder