The clinical and cost effectiveness of group art therapy for people with non-psychotic mental health disorders: a systematic review and cost-effectiveness analysis

Table 9 The distributions used in the probabilistic sensitivity analyses

	Mean value	2.5^th percentile	97.5^th percentile
Utility gain in the Monti et al. [16], RCT of art therapy compared with wait-list control^a	0.078	0.034	0.119
Utility gain in the Monti et al. [17], RCT of art therapy compared with wait-list control^b	0.087	0.043	0.126
Relationship between one unit decrease in GSI and utility gain (using Ara and Brazier [25])	0.485	0.212	0.744
Relationship between one unit decrease in GSI and utility gain (using Rowen et al. [26])	0.542	0.271	0.790
GSI decrease of verbal therapy compared with art therapy in the Thyme et al. [14], RCT.	0.235	−0.270	0.721
	(Verbal therapy more effective)	(Art therapy more effective)	(Verbal therapy more effective)
Derived utility gain in the Thyme et al. [14], RCT of verbal therapy compared with art therapy (using Ara and Brazier [25])	0.114	−0.145	0.386
Derived utility gain in the Thyme et al. [14], RCT of verbal therapy compared with art therapy (using Rowen et al. [26])	0.127	−0.160	0.426

^aHaving sampled from the SF-36 dimensions and mapped to utility using the Ara and Brazier [25] algorithm
^bHaving sampled from the SF-36 dimensions and mapped to utility using the Rowen et al. [26], algorithm

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