Table 3.

DCE Parameter Estimate

		Recent Hospitalisation				No Recent Hospitalisation
Random Parameters		Coefficient	SE	T-ratio	P valueƚ	Coefficient	SE	T-ratio	P valueƚ	Explanation
Effectiveness on hearing voices	Not hearing voices	0.370	0.080	4.590	<0.001	0.370	0.080	4.590	<0.001	Not hearing voices preferred over occasionally/frequently hearing voices
	(RC: Occasionally/frequently hearing voices)
Effectiveness on inability to communicate with friends/support network	No difficulty	0.174	0.069	2.540	0.011	0.174	0.069	2.540	0.011	No difficulty communicating with friends/support network preferred over some/great difficulty
	(RC: Some/great difficulty)
Impact on sexual health	No problems	0.188	0.070	2.690	0.007	0.188	0.070	2.690	0.007	No problems with sexual health preferred over problems with erections/breast enlargement for men or irregular periods for women
	(RC: Problems with erections/breast enlargement (M); irregular periods (F))
Impact on restlessness	No problems	0.146	0.074	1.970	0.049	0.146	0.074	1.970	0.049	No problems with restlessness preferred over some/constant problems with pacing and being able to sit still
	(RC: Some/constant problems with pacing and being able to sit still)
Non-random parameters		Coefficient	SE	T-ratio	P valueƚ	Coefficient	SE	T-ratio	P valueƚ
Alternative-specific constants	Oral	2.340	0.726	3.220	0.001	-0.311	0.191	-1.630	0.103	Holding all else equal: Oral most preferred for recent hospitalisation, SQ most preferred for no recent hospitalisation
	Injection	1.809	0.727	2.490	0.013	-0.870	0.199	-4.360	<0.001
	(RC: Status quo)
Risk of hospital admission (oral only)	Increased risk	-0.232	0.186	-1.250	0.212	0	-	-		Decreased risk in hospital admission preferred over same or increased risk for oral treatments in recent hospitalisation group
	Decreased risk	0.340	0.187	1.820	0.069	0	-	-
	(RC: Same risk)
Non-random parameters		Coefficient	SE	T-ratio	P valueƚ	Coefficient	SE	T-ratio	P valueƚ
Time since diagnosis	Diagnosed within the last 10 years	-2.008	0.367	-5.470	<0.001	-1.001	0.310	-3.220	0.001	Patients diagnosed over 10 years ago more likely to choose SQ than those diagnosed within last 10 years
	(RC: Diagnosed more than 10 years ago)
Current age	41+ years	1.364	0.376	3.630	<0.001	-0.905	0.236	-3.830	<0.001	Patients aged over 40 years more likely to choose SQ than those aged 18-40 years for recent hospitalisation, while opposite true for no recent hospitalisation
	(RC: 18 40 years)
Quality-of-life	Q-LES-Q-SF score	2.246	0.920	2.440	0.015	0	-	-		Patients with higher QoL more likely to choose SQ than those with lower QoL for recent hospitalisation