Table 2.

Logistic regressions for motivations to misuse prescription tranquilizers predicting mental health problems.

Model variables	B	SE	p	OR	95% CIOR
Past year any mental illness vs. No past year mental illnessa
Intercept (Did not misuse this substance)	0.49	0.04	.000	1.63	[1.50, 1.77]
Relax or relieve tension	0.48	0.08	.000	1.62	[1.38, 1.90]
Experiment/see what like	−0.33	0.14	.023	0.72	[0.55, 0.95]
Feel good/get high	0.25	0.13	.050	1.29	[1.00, 1.66]
Help with sleep	0.32	0.12	.009	1.38	[1.09, 1.76]
Help with feelings or emotions	1.45	0.11	.000	4.25	[3.41, 5.31]
Increase/decrease effects of other drugs	0.62	0.31	.046	1.87	[1.01, 3.44]
Some other reason	0.37	0.33	.271	1.45	[0.74, 2.81]
Misused, no motivation endorsed	−0.06	0.43	.883	0.94	[0.39, 2.24]
Did not misuse any substance	−1.01	0.04	.000	0.36	[0.34, 0.39]
Past year serious mental illness vs. No past year serious mental illness b
Intercept (Did not misuse this substance)	−0.76	0.06	.000	0.47	[0.41, 0.53]
Relax or relieve tension	0.28	0.09	.003	1.33	[1.11, 1.60]
Experiment/see what like	−0.25	0.27	.367	0.78	[0.45, 1.35]
Feel good/get high	0.12	0.14	.393	1.13	[0.85, 1.51]
Help with sleep	0.33	0.13	.015	1.39	[1.07, 1.80]
Help with feelings or emotions	1.23	0.12	.000	3.44	[2.68, 4.41]
Increase/decrease effects of other drugs	0.74	0.37	.051	2.10	[1.00, 4.42]
Some other reason	0.62	0.32	.058	1.86	[0.98, 3.54]
Misused, no motivation endorsed	0.03	0.39	.934	1.03	[0.47, 2.28]
Did not misuse any substance	−1.16	0.05	.000	0.31	[0.28, 0.35]
Past year major depressive episode vs. No past year major depressive episode c
Intercept (Did not misuse this substance)	−0.39	0.06	.000	0.68	[0.61, 0.76]
Relax or relieve tension	0.27	0.09	.006	1.31	[1.09, 1.57]
Experiment/see what like	−0.29	0.25	.243	0.75	[0.45, 1.23]
Feel good/get high	−0.00	0.18	.994	1.00	[0.70, 1.44]
Help with sleep	0.38	0.16	.018	1.47	[1.07, 2.01]
Help with feelings or emotions	1.03	0.13	.000	2.79	[2.15, 3.63]
Increase/decrease effects of other drugs	0.79	0.33	.021	2.20	[1.13, 4.27]
Some other reason	0.35	0.34	.308	1.42	[0.72, 2.79]
Misused, no motivation endorsed	−0.95	0.47	.047	0.39	[0.15, 0.99]
Did not misuse any substance	−0.93	0.05	.000	0.40	[0.36, 0.44]
Past year serious thoughts of suicide vs. No past year serious thoughts of suicide d
Intercept (Did not misuse this substance)	−0.82	0.07	.000	0.44	[0.38, 0.51]
Relax or relieve tension	0.29	0.10	.004	1.34	[1.10, 1.62]
Experiment/see what like	−0.32	0.25	.211	0.73	[0.44, 1.21]
Feel good/get high	0.42	0.14	.006	1.51	[1.13, 2.02]
Help with sleep	0.36	0.14	.013	1.43	[1.08, 1.89]
Help with feelings or emotions	1.12	0.13	.000	3.06	[2.36, 3.98]
Increase/decrease effects of other drugs	0.42	0.42	.316	1.52	[0.66, 3.51]
Some other reason	1.04	0.34	.003	2.82	[1.43, 5.56]
Misused, no motivation endorsed	0.55	0.41	.181	1.73	[0.77, 3.92]
Did not misuse any substance	−1.12	0.06	.000	0.33	[0.29, 0.37]

Note. Included age, sex, household income, population density, and race as covariates. Reference category = No misuse of this prescription drug.

^aModel: Wald F(23, 28) = 224.07, p < .001, R² = .06 (Cox & Snell), .09 (Nagelkerke).

^bModel: Wald F(23, 28) = 124.20, p < .001, R² = .03 (Cox & Snell), .10 (Nagelkerke).

^cModel: Wald F(23, 28) = 154.97, p < .001, R² = .04 (Cox & Snell), .09 (Nagelkerke).

^dModel: Wald F(23, 28) = 102.68, p < .001, R² = .03 (Cox & Snell), .09 (Nagelkerke).