Table 3 Association Between Education and Substance Use Behaviors in 2011 from Negative Binominal Regression, Cross-Sectional Analyses

From: “College fields of study and substance use”

	Full Sample (N = 6949)				Men (N = 3461)				Women (N = 3488)
	Coefficient	S.E.	95% C.I.		Coefficient	S.E.	95% C.I.		Coefficient	S.E.	95% C.I.
*Model 1* *Ref: No College*
College Degree	−0.167***	0.042	− 0.249	− 0.084	− 0.114*	0.057	− 0.226	− 0.002	− 0.237***	0.063	− 0.360	− 0.114
*Model 2* *Ref: No College*
STEM	− 0.266**	0.095	− 0.453	− 0.080	− 0.254*	0.114	− 0.478	− 0.031	− 0.275	0.175	− 0.618	0.067
Health	− 0.197	0.191	− 0.571	0.176	− 0.001	0.379	− 0.745	0.743	− 0.298	0.221	− 0.731	0.135
Education	− 0.751***	0.190	−1.124	− 0.378	− 0.455	0.354	−1.149	0.240	− 0.882***	0.226	−1.324	− 0.439
Arts & Humanities	− 0.126	0.083	− 0.287	0.036	− 0.133	0.117	− 0.362	0.097	− 0.139	0.117	− 0.368	0.090
Social Sciences	−0.071	0.094	−0.256	0.114	0.005	0.141	−0.271	0.281	−0.139	0.127	−0.388	0.110
Business	−0.073	0.082	−0.234	0.088	0.034	0.099	−0.160	0.229	−0.272	0.147	−0.560	0.017
Others	−0.262	0.214	−0.682	0.158	−0.205	0.269	−0.731	0.322	−0.332	0.355	−1.027	0.363
Multiple Fields^a	−0.091	0.114	−0.316	0.133	−0.243	0.202	−0.638	0.153	−0.043	0.140	−0.317	0.231

*** p < .001, **p < .01, *p < .05
Abbreviations: Ref., reference, S.E. standard error, C.I. confidence interval
Model 1 and Model 2 include all covariates. All models include no college degrees
^aMultiple Fields refers to individuals with a double major in different fields of college major only; individuals with a double major in the same field of college major are not categorized into Multiple Fields

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