Table 2.

Factors Affecting Use of Telemedicine

	All Ages	Aged 18 Years and Older Only
	(1)	(2)	(3)	(4)	(5)
New patient	−0.041^***	−0.047^***	−0.046^***	−0.046^***	−0.047^***
	(0.003)	(0.003)	(0.003)	(0.003)	(0.003)
Primary care visit	0.003	0.003	0.002	0.002	−0.000
	(0.002)	(0.002)	(0.002)	(0.002)	(0.002)
LACE/Risk score	−0.000^***	−0.000	−0.000^*	−0.000^***	−0.000^**
	(0.000)	(0.000)	(0.000)	(0.000)	(0.000)
Hospital admission risk	0.000^***
	(0.000)
Sex = Male	0.020^***	0.019^***	0.019^***	0.019^***	0.016^***
	(0.002)	(0.002)	(0.002)	(0.002)	(0.002)
Race = White	0.012^***	0.011^***	0.011^***	0.011^***	0.009^**
	(0.003)	(0.004)	(0.004)	(0.004)	(0.004)
Age, years	0.002^***	−0.002^***
	(0.000)	(0.000)
Married	0.003	−0.005^***	−0.007^***	−0.007^***	−0.004^**
	(0.003)	(0.002)	(0.002)	(0.002)	(0.002)
Persons aged 35 years and older but younger than 65 years = 1			−0.024^***	−0.029^***	−0.021^***
			(0.003)	(0.004)	(0.004)
Persons aged 65 years or older = 1			−0.024^***	−0.040^***	−0.029^***
			(0.003)	(0.007)	(0.007)
Persons aged older than 35 years but younger than 65 years interacted with LACE score				0.000^**	0.000
				(0.000)	(0.000)
Persons aged 65 years or older interacted with LACE score				0.001^***	0.001^**
				(0.000)	(0.000)
Constant	−0.118^***	−0.029	−0.067^**	−0.065^**	−0.067^**
	(0.029)	(0.030)	(0.028)	(0.029)	(0.028)
Observations	110,991	105,988	106,025	106,025	106,025
R-squared	0.067	0.068	0.068	0.068	0.083
Adjusted R-squared	0.0666	0.0680	0.0678	0.0679	0.0822

↵*** P < .01,
↵** P < .05,
↵* P < .1.
Models also control for whether the visit was on a weekday, the month of the visit, distance of the patient from the clinics in Morgantown, and community-level factors at the zip code level including the poverty rate, median household income, the unemployment rate, the percentage of persons with a bachelor's degree or higher and with a high school diploma. Model 5 also include diagnosis codes.
Robust standard errors in parentheses.
Abbreviations: LACE score, a readmission risk score based on hospital admission information, the Charlson Comorbidity index, and emergency department visits within the last 6 to 12 months.