Table 3.

Results for the effect of antecedents on online contribution (N=40,300).

Independent variablesa		Coefficientb	SEc	t40,292	P
Intercept		1.417	0.011	125.165	<.001
Psychological reward		0.192	0.006	33.112	<.001
Material reward		0.359	0.006	61.827	<.001
Control variables
	Past online contribution	0.450	0.005	89.752	<.001
	Doctor review rating	0.246	0.006	41.823	<.001
	Clinic title	–0.115	0.010	–11.488	<.001
	Hospital level	–0.114	0.012	–9.533	<.001
	City level	–0.149	0.011	–13.084	<.001

^aModel summary: R²=.534, F_7,40,292=6588, P<.001.

^bStandardized regression coefficient.

^cSE: standard error.