Table 2.

Ordinary least squares regression analysis of following web-based medical advice regressed on experimental conditions.

			Model 1	P value	Model 2	P value
Experimental conditions
	Physician author		0.184	<.001	0.385	<.001
	Article format		0.019	.60	–0.196	.06
	Objective writing style		0.101	.006	0.312	.003
	Medical skepticism		0.099	<.001	0.144	.001
Interactions
	Skepticism × physician		—a	—	–0.089	.04
	Skepticism × article		—	—	0.094	.03
	Skepticism × objective		—	—	–0.094	.03
Health care
	Number of health care visits		0.025	<.001	0.025	<.001
	Primary care is emergency or urgent		0.099	.04	0.094	.047
	No insurance (reference: any insurance)		–0.018	.73	–0.012	.83
Control variables
	Setting (reference: urban setting)
		Rural	–0.072	.18	–0.074	.16
		Suburban	–0.009	.84	–0.009	.84
	Female		0.010	.80	0.013	.73
	Race (reference: White)
		Asian	–0.114	.14	–0.121	.12
		Black	–0.042	.40	–0.045	.36
		Hispanic	0.015	.83	0.019	.78
		Other race	–0.075	.44	–0.079	.42
	Bachelor’s degree or higher (reference=less than bachelor’s degree)		–0.232	<.001	–0.225	<.001
	Income		0.007	.28	0.007	.31
	Age (years; reference: older adults aged ≥65 years)
		Young (18-34)	–0.244	<.001	–0.242	<.001
		Middle-aged (35-64)	–0.121	.03	–0.120	.03
	Constant		2.678	<.001	2.576	<.001
R2 (N=2305)			0.059	N/Ab	0.060	N/A

^aNot included in base model.

^bN/A: not applicable.