Table 4.

Results of fixed-effect model test (model 2).

Variablesa	Number of patients consulted during the 60-day period (log)
	Coefficient	t value (degrees of freedom)	P value
Contribution (log)	0.19	16.21 (4037)	<.001
Total number of homepage views (log)	0.18	8.04 (4037)	<.001
Number of votes (log)	0.48	40.36 (4037)	<.001
Thank-you messages (log)	0.17	11.82 (4037)	.01
Virtual gifts (log)	−0.06	1.13 (4037)	.17
Male	−0.02	−0.65 (4037)	.52
Female	0.01	0.31 (4037)	.76
Attending Physician	0.17	1.79 (4037)	.07
Associate Director Physician	0.22	2.33 (4037)	.02
Director Physician	0.30	3.15 (4037)	<.001
Secondary hospital	−0.07	−0.22 (4037)	.82
Tertiary hospital	−0.12	−0.37 (4037)	.71
Constant	−1.32	−3.82 (4037)	<.001

^aPlease note that the value of F test that all μ_it =0 (3643) is 149.15 (P<.001) and R²=0.82.