Table 5.

Results of MXL analyses on opt out data by presenting scenario

Attribute	Levels	Part-worth utilities
		S1 (possible concussion—self)				S2 (rash/asthma related—self)				S3 (rash/asthma related—daughter)				S4 (anxiety related—self)
		Mean parameter	p Value	SD	p Value	Mean parameter	p Value	SD	p Value	Mean parameter	p Value	SD	p Value	Mean parameter	p Value	SD	p Value
Principal healthcare professional	ED clinician	0.261		−0.527		0.054		−0.454		0.293		−0.031		0.163		−0.720
	GP (may not be your usual GP)	**−0.073	0.001	0.161	0.233	0.095	0.062	**0.302	0.001	0.049	0.239	0.004	0.974	0.005	0.927	**0.430	<0.001
	Emergency health professional (other than a doctor)	**−0.188	<0.001	**0.366	<0.001	**−0.149	0.003	0.152	0.196	**−0.342	<0.001	0.027	0.772	**−0.158	0.002	**0.290	0.001
Location	Home	−0.028		−0.934		0.100		−0.600		−0.027		−0.785		0.038		−1.132
	local clinic	**−0.091	0.002	**0.357	<0.001	0.073	0.200	**0.369	<0.001	0.063	0.206	**0.358	<0.001	0.067	0.263	**0.538	<0.001
	Hospital	**0.119	<0.001	**0.577	<0.001	**−0.173	0.004	**0.594	<0.001	−0.036	0.451	**0.427	<0.001	−0.105	0.083	**0.594	<0.001
Potential cost to you	Per $1 of out-of-pocket expense (continuously coded based on levels of $0, $50, $100, $200)	**−0.019	<0.001	**0.019	<0.001	**−0.027	<0.001	**0.023	<0.001	**−0.016	<0.001	**0..018	<0.001	**−0.022	<0.001	**0.022	<0.001
Maximum waiting time	Per 1 min of waiting time (based on attribute-levels of 30 min, 1 h, 2 h and 4 h)	**−0.012	<0.001	**0.008	<0.001	**−0.009	<0.001	**0.007	<0.001	**−0.011	<0.001	**0.005	<0.001	**−0.013	<0.001	**0.008	<0.001
Quality	Healthcare professional is easy to understand, comprehensive treatment; no interruptions	0.557		−0.918		0..552		−0.981		0.806		−1.017		0.599	<0.001	−0.759
	Healthcare professional is easy to understand, basic treatment; some interruptions	**0.156	<0.001	0.092	0.149	**0.279	<0.001	*0.227	0.042	**0.200	<0.001	0.161	0.143	**0.199	<0.001	0.005	0.977
	Healthcare professional is not easy to understand, basic treatment; some interruptions	**−0.713	<0.001	**0.826	<0.001	**−0.831	<0.001	**0.754	<0.001	**−1.006	<0.001	**0.856	<0.001	**−0.798		**0.754	<0.001
Constant	(associated with delaying care)	**−6.502	<0.001	**3.722	<0.001	**−4.736	<0.001	**3.474	<0.001	**−6.715	<0.001	**3.601	<0.001	**−5.477	<0.001	**3.726	<0.001

Referent levels in italics.

**p<0.01; *p<0.05.

ED, emergency department; GP, general practitioner; MXL, mixed logit.