Table 1.

Included indicators in the latent profile algorithm.

Variable name	Description	Variable type
Depression severity	Patient Health Questionnaire (PHQ-9) at referral (Kroenke et al., 2001)	Continuous
Anxiety severity	Generalised Anxiety Disorder Scale (GAD-7) score at referral (Spitzer et al., 2006)	Continuous
Functional impairment	Work and Social adjustment Scale (W&SAS) score at referral (Mundt, Marks, Shear, & Greist, 2002)	Continuous
Phobia self-rating	Caseness for phobia was defined as a score of 4 or higher on any one of the three phobia items (IAPT, 2011).	Dichotomous
Age at referral	Age of patient	Continuous
Gender	‘Male’ or ‘female’	Dichotomous
Medication prescription status	‘Prescribed’ or ‘not prescribed’ psychotropic medication at referral.	Dichotomous
Welfare status	‘Receiving benefits’ as defined by the IAPT employment status variable	Dichotomous
Ethnic group	‘White’ or ‘non-white’ ethnic group	Dichotomous