Table 3.
Time 2 | ||||||
Drug-related problems | Ever used illicit drugs | |||||
Variable | Wald χ2 | Odds ratio | 95% CI | Wald χ2 | Odds ratio | 95% CI |
Gender | 0.99 | 0.89 | 0.72–1.12 | 1.07 | 1.09 | 0.92–1.29 |
Age | 0.90 | 0.93 | 0.80–1.08 | 0.78 | 0.95 | 0.84–1.07 |
Race-ethnicity | 0.45 | 1.09 | 0.85–1.40 | 0.07 | 0.98 | 0.81–1.18 |
Education | 3.69 | 1.18 | 1.00–1.40 | 0.83 | 1.06 | 0.93–1.21 |
Poverty status | 1.22 | 0.83 | 0.60–1.16 | 0.17 | 0.95 | 0.76–1.20 |
Chronic health conditions | 0.14 | 1.04 | 0.84–1.30 | 0.39 | 1.05 | 0.89–1.25 |
Drug-related problems (Time 1)a | 496.32 | 15.03*** | 11.84–19.08 | 858.68 | 13.14*** | 11.06–15.62 |
Trouble falling asleep (Time 1)b | 1.90 | 1.08 | 0.97–1.19 | 5.60 | 1.10* | 1.02–1.19 |
Hours of sleep | 4.39 | 0.92* | 0.85–0.99 | 5.82 | 0.93* | 0.87–0.99 |
Time 3 | ||||||
Drug-related problems | Ever used illicit drugs | |||||
Variable | Wald χ2 | Odds ratio | 95% CI | Wald χ2 | Odds ratio | 95% CI |
Gender | 26.44 | 0.47*** | 0.35–0.63 | 48.61 | 0.58*** | 0.45–0.67 |
Age | 3.72 | 0.82* | 0.67–1.00 | 17.53 | 0.79*** | 0.71–0.88 |
Race-ethnicity | 1.83 | 1.25 | 0.91–1.73 | 29.96 | 1.63*** | 1.37–1.95 |
Education | 0.44 | 0.93 | 0.74–1.16 | 1.70 | 1.08 | 0.96–1.22 |
Poverty status | 0.39 | 0.86 | 0.55–1.36 | 2.57 | 0.82 | 0.65–1.05 |
Chronic health conditions | 1.23 | 1.17 | 0.89–1.55 | 0.47 | 0.95 | 0.81–1.10 |
Drug-related problems (Time 2)a | 69.29 | 4.23*** | 3.01–5.95 | 201.45 | 3.46*** | 2.91–4.11 |
Trouble falling asleep (Time 2)b | 1.66 | 1.10 | 0.95–1.27 | 2.32 | 1.07 | 0.98–1.16 |
Hours of sleep | 0.30 | 1.03 | 0.93–1.14 | 1.04 | 0.97 | 0.92–1.03 |
Note.
Drug-related problems or the experience of using illicit drugs in a previous wave were controlled for in the analyses.
Note.
Frequency of trouble falling asleep or staying asleep in the last twelve months.
p < .05,
p <.01,
p <.001.