Table 2.

Measurement items and statistics of variables.

Variable, proxy, and wave			Minimum number of variables	Maximum number of variables	Mean (SD)
Number of consultations
	Consultation number of patients in a 60-day period
		1	0	16,003	143.78 (546.82)
		2	0	17,620	154.27 (573.64)
		3	0	18,443	160.56 (589.00)
Online effort of physician
	Contribution of physician, calculated by the Good Doctor website
		1	0	210,580	1478.48 (6456.89)
		2	0	234,605	1589.70 (6837.36)
		3	0	251,440	1687.46 (7112.74)
Online reputation of physician
	Total number of homepage views (log)
		1	3.09	16.23	9.76 (2.00)
		2	5.78	16.27	10.00 (1.75)
		3	6.32	16.32	10.15 (1.66)
	Votes
		1	0	1587	10.23 (38.83)
		2	0	1733	10.82 (41.38)
		3	0	1860	11.31 (43.52)
	Thank-you messages
		1	0	680	3.20 (16.60)
		2	0	782	3.58 (18.36)
		3	0	863	3.84 (19.71)
	Virtual gifts
		1	0	1956	8.23 (49.80)
		2	0	2137	8.89 (53.58)
		3	0	2424	9.58 (58.74)