Table 1.

Multiple Linear Regression Analysis of Total Number of Messages Received*

	Regression Coefficient	Standard Error	T Statistic	P Value
Model intercept	883.73	46.58	18.97	<0.001
Income	104.17	38.20	2.73	0.008
Full-time equivalent	161.04	45.38	3.55	<0.001
Panel size	187.68	44.81	4.19	<0.001
Years employed at MetroHealth	96.49	37.08	2.60	0.011
Male (vs female)	−97.95	73.16	−1.34	0.185

*All continuous predictors were standardized to z scores before inclusion in the model for ease of effect size interpretability due to the different scales. We performed listwise deletion to handle 13 missing observations.