Table 2.

Multinomial logistic regression predicting the odds ratios [95% CI] of stimulant persistence subgroup using sex, age, income, race, parental status, population density, cigarette, alcohol, marijuana, and inhalant persistence subgroups (unweighted n = 117,442).

Substance		Non-persistent	p-value	Persistent	p-value	Recent onset	p-value
Female		1.58 [1.32–1.89]	<.001	1.49 [1.19–1.86]	<.001	1.66 [1.44–1.91]	<.001
Age		1.25 [1.16–1.34]	<.001	1.15 [1.04–1.27]	.005	.97 [.92–1.03]	.ns
Income	Less than $20,000	1.12 [.88–1.42]	.ns	1.07 [.73–1.56]	.ns	.74 [.56–.98]	.035
	$20,000–49,999	1.12 [.91–1.37]	.ns	.94 [.72–1.22]	.ns	.82 [.70–.97]	.021
	$50,000–74,999	.82 [.63–1.07]	.ns	.96 [.70–1.32]	.ns	.80 [.67–.97]	.022
Race	Hispanic/Latino	.69 [.52–.91]	.010	.62 [.42–.90]	.013	.57 [.45–.72]	<.001
	Black	.55 [.38–.80]	.002	.85 [.55–1.33]	.ns	.46 [.33–.64]	<.001
	Native American	.39 [.19–.77]	.007	.43 [.21–.88]	.022	1.09 [.64–1.88]	.ns
	Pacific Islander	.11 [.03–.45]	.002	.12 [.03–.53]	.006	.96 [.33–2.84]	.ns
	Asian	1.19 [.64–2.20]	.ns	.87 [.28–2.64]	.ns	.84 [.42–1.67]	.ns
	Multiracial	1.17 [.81–1.70]	.ns	.86 [.47–1.56]	.ns	.64 [.43–.94]	.025
Parental status	Mother-only	1.06 [.85–1.32]	.ns	.83 [.60–1.16]	.ns	1.05 [.85–1.30]	.ns
	Father-only	.99 [.73–1.36]	.ns	.73 [.47–1.14]	.ns	.95 [.69–1.31]	.ns
	Neither parent	1.00 [.65–1.52]	.ns	1.10 [.71–1.70]	.ns	1.29 [.90–1.84]	.ns
Population	Not in CBSA	.92 [.70–1.19]	.ns	.93 [.65–1.32]	.ns	.87 [.67–1.13]	.ns
density	CBSA < 1M	1.04 [.85–1.27]	.ns	.97 [.75–1.24]	.ns	.93 [.79–1.09]	.ns
Cigarette	Non-persistent	2.04 [1.44–2.90]	<.001	1.49 [.84–2.64]	.ns	1.46 [1.03–2.07]	.ns
	Persistent	2.44 [1.76–3.36]	<.001	3.80 [2.21–6.55]	<.001	2.71 [2.11–3.47]	.033
	Recent	.95 [.60–1.49]	.ns	1.07 [.59–1.94]	.ns	2.22 [1.76–2.80]	<.001
Alcohol	Non-persistent	2.60 [1.75–3.85]	<.001	1.81 [.89–3.67]	.ns	2.84 [1.80–4.47]	<.001
	Persistent	2.48 [1.75–3.53]	<.001	3.35 [2.04–5.48]	<.001	7.39 [5.45–10.02]	<.001
	Recent	1.49 [1.01–2.21]	0.047	1.30 [.75–2.26]	.ns	5.37 [3.87–7.46]	<.001
Marijuana	Non-persistent	3.47 [2.58–4.67]	<.001	1.50 [.83–2.73]	.ns	1.70 [1.20–2.41]	.003
	Persistent	3.66 [2.81–4.78]	<.001	5.61 [3.66–8.59]	<.001	4.44 [3.52–5.58]	<.001
	Recent	1.11 [.72–1.71]	.ns	1.72 [1.04–2.85]	0.037	3.25 [2.56–4.13]	<.001
Inhalants	Non-persistent	6.06 [4.91–7.48]	<.001	4.99 [3.61–6.89]	<.001	1.61 [1.28–2.03]	<.001
	Persistent	4.20 [2.90–6.09]	<.001	12.68 [9.06–17.75]	<.001	3.61 [2.79–4.67]	<.001
	Recent	3.09 [2.24–4.26]	<.001	4.52 [3.22–6.35]	<.001	4.08 [3.39–4.90]	<.001

Note: The reference group for sex = male, income = $75k+, race = White, parental status = dual parent household, population density = CBSA > 1M, and for each type of substance = nonuser. All odds ratios and p-values are the weighted estimate.