Skip to main content
. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Addict Behav. 2012 Feb 17;37(6):716–721. doi: 10.1016/j.addbeh.2012.02.011

Table 1.

Multinomial logistic regression predicting the odds ratios [95% CI] of opioid persistence subgroup using sex, age, income, race, parental status, population density, cigarette, alcohol, marijuana, and inhalant persistence subgroups (unweighted n = 116,160).

Substance Non-persistent p-value Persistent p-value Recent onset p-value
Female 1.17 [1.04–1.30] .007 1.17 [1.05–1.30] .006 1.27 [1.17–1.38] <.001
Age 1.15 [1.10–1.20] <.001 1.11 [1.07–1.16] <.001 1.03 [1.01–1.06] .013
Income Less than $20,000 1.50 [1.22–1.84] <.001 1.40 [1.16–1.68] <.001 1.08 [.95–1.22] .ns
$20,000–49,999 1.41 [1.21–1.64] <.001 1.23 [1.06–1.43] .007 1.01 [.89–1.13] .ns
$50,000–74,999 1.21 [.98–1.50] .ns 1.07 [.91–1.27] .ns 1.10 [.99–1.23] .ns
Race Hispanic/Latino   .98 [.83–1.15] .ns   .83 [.70–.99] .042   .81 [.70–.95] .008
Black   .92 [.77–1.11] .ns 1.14 [.96–1.35] .ns   .69 [.60–.80] <.001
Native American   .64 [.42–1.00] .048   .83 [.49–1.43] .ns   .89 [.60–1.31] .ns
Pacific Islander 1.03 [.38–2.74] .ns 1.58 [.90–2.77] .ns   .61 [.28–1.34] .ns
Asian   .78 [.49–1.24] .ns   .96 [.65–1.42] .ns   .61 [.40–.93] .023
Multiracial 1.22 [.84–1.77] .ns 1.07 [.82–1.39] .ns   .76 [.61–.93] .009
Parental status Mother-only 1.12 [.98–1.29] .ns 1.14 [.97–1.34] .ns 1.16 [1.04–1.28] .007
Father-only 1.05 [.80–1.38] .ns 1.02 [.79–1.31] .ns 1.15 [.96–1.37] .ns
Neither parent 1.44 [1.13–1.83] .004 1.16 [.93–1.45] .ns 1.20 [.99–1.44] .ns
Population Not in CBSA   .99 [.83–1.18] .ns   .92 [.78–1.09] .ns 1.10 [.98–1.23] .ns
density CBSA < 1M 1.07 [.93–1.22] .ns 1.12 [.99–1.27] .ns 1.10 [1.01–1.20] .038
Cigarette Non-persistent 1.85 [1.53–2.23] <.001 1.05 [.85–1.30] .ns 1.33 [1.15–1.55] <.001
Persistent 2.37 [1.91–2.93] <.001 2.49 [2.09–2.97] <.001 2.30 [2.06–2.57] <.001
Recent 1.22 [.92–1.61] .ns 1.10 [.88–1.38] .ns 1.97 [1.74–2.22] <.001
Alcohol Non-persistent 2.78 [2.23–3.46] <.001 1.95 [1.54–2.48] <.001 2.10 [1.70–2.58] <.001
Persistent 2.59 [2.13–3.16] <.001 3.05 [2.55–3.65] <.001 3.86 [3.30–4.52] <.001
Recent 1.48 [1.17–1.86] <.001 1.19 [.96–1.47] .ns 3.24 [2.80–3.74] <.001
Marijuana Non-persistent 2.35 [1.89–2.92] <.001 1.61 [1.29–2.00] <.001 1.84 [1.53–2.20] <.001
Persistent 2.53 [2.07–3.08] <.001 3.88 [3.36–4.48] <.001 4.71 [4.11–5.41] <.001
Recent 1.00 [.78–1.29] .ns 1.00 [.80–1.25] .ns 2.82 [2.53–3.14] <.001
Inhalants Non-persistent 4.34 [3.69–5.10] <.001 3.97 [2.86–5.50] <.001 2.61 [2.06–3.32] <.001
Persistent 4.09 [3.42–4.89] <.001 9.60 [7.69–11.97] <.001 3.97 [3.26–4.83] <.001
Recent 2.15 [1.85–2.50] <.001 3.69 [2.96–4.60] <.001 3.96 [3.49–4.49] <.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.