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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: Alcohol Clin Exp Res. 2015 Jan 16;39(2):355–362. doi: 10.1111/acer.12618

Table 2.

The prospective relationship between sleep measures and alcohol-related problems

Time 2
Interpersonal problems Binge drinking Driving when drunk Regretted sex




Variable Wald χ2 Odds ratio 95% CI Wald χ2 Odds ratio 95% CI Wald χ2 Odds ratio 95% CI Wald χ2 Odds ratio 95% CI

Gender 0.05 0.98 0.82–1.17 2.90 .87 0.74–1.02 14.33 0.54*** 0.93–0.74 0.15 0.95 0.74–1.23
Age 0.82 1.06 0.94–1.20 0.13 0.98 0.88–1.10 0.37 0.94 0.75–1.16 1.62 1.13 0.94–1.35
Race-ethnicity 14.45 1.50*** 1.22–1.85 56.65 2.13*** 1.76–2.60 5.82 1.62* 1.10–2.41 8.77 1.62** 1.18–2.22
Education 1.79 1.10 0.96–1.26 11.77 1.24** 1.10–1.40 15.50 1.64*** 1.28–2.10 0.23 1.05 0.86–1.28
Poverty status 0.26 0.93 0.72–1.22 1.04 .089 0.70–1.12 2.20 0.59 0.29–1.19 0.01 1.02 0.71–1.46
Chronic health conditions 0.77 0.92 0.78–1.10 0.01 .099 0.85–1.16 0.89 0.88 0.66–1.21 2.64 0.81 0.63–1.05
Alcohol-related problems (Time 1)a 429.81 7.25*** 6.01–8.75 561.65 7.97*** 6.71–9.47 145.27 10.36*** 7.08–15.14 214.17 8.89*** 6.64–11.92
Trouble falling asleep (Time 1)b 6.37 1.11** 1.02–1.21 0.65 1.03 0.96–1.12 3.14 1.14c 0.99–1.32 4.68 1.14* 1.01–1.28
Hours of sleep 5.95 0.92** 0.86–0.98 10.59 0.91** 0.85–0.96 1.31 0.93 0.83–1.05 1.18 0.94 0.85–1.03

Time 3
Interpersonal problems Binge drinking Driving when drunk Regretted sex




Wald χ2 Odds ratio 95% CI Wald χ2 Odds ratio 95% CI Wald χ2 Odds ratio 95% CI Wald χ2 Odds ratio 95% CI

Gender 58.93 0.49*** 0.41–0.59 106.20 .45*** 0.39–.053 113.19 0.39*** 0.33–0.47 37.33 0.54*** 0.45–0.66
Age 4.26 0.87* 0.77–0.99 11.83 0.83** 0.75–0.92 13.29 0.79*** 0.70–0.90 3.92 0.87* 0.75–1.00
Race-ethnicity 22.93 1.70*** 1.37–2.11 145.63 2.81*** 2.38–3.33 71.65 2.55*** 2.05–3.16 45.34 2.46*** 1.89–3.20
Education .93 1.10 0.93–1.23 13.23 1.24*** 1.11–1.40 16.71 1.33 1.16–1.52 1.24 1.09 0.94–1.28
Poverty status 0.73 0.88 0.66–1.18 11.51 0.65** 0.51–0.84 0.36 0.92 0.71–1.20 0.88 0.85 0.61–1.19
Chronic health conditions 1.45 0.90 0.75–1.08 1.23 0.92 0.79–1.07 2.99 0.84 0.73–1.02 0.95 0.91 0.75–1.10
Alcohol-related problems (Time 2)a 74.13 2.51*** 2.03–3.09 96.04 2.40*** 2.02–2.86 59.36 3.91*** 2.76–5.53 27.95 2.32*** 1.70–3.18
Trouble falling asleep (Time 2)b 3.92 1.10* 1.00–1.21 3.01 1.07 0.99–1.61 4.01 1.10* 1.00–1.20 2.85 1.09d 0.99–1.21
Hours of sleep 1.77 0.96 0.89–1.02 0.06 0.99 0.94–1.05 3.45 0.94 0.88–1.00 3.61 0.93e 0.86–1.00

Note.

a

Corresponding alcohol-related problems (e.g., interpersonal problems) in a previous wave were controlled for in the analyses.

b

Frequency of trouble falling asleep or staying asleep in the last twelve months.

c

Significant when hours of sleep were dropped from the model, Wald χ2 (1) = 3.92, OR = 1.16, p < .05.

d

Significant when hours of sleep were dropped from the model, Wald χ2 (1) = 3.90, OR = 1.11, p < .05.

e

Significant when trouble of sleeping was dropped from the model, Wald χ2 (1) = 4.58, OR = .92, p < .05.

*

p < .05,

**

p <.01,

***

p <.001.