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. Author manuscript; available in PMC: 2016 Jan 14.
Published in final edited form as: Sleep Health. 2015 May 1;1(1):15–27. doi: 10.1016/j.sleh.2014.12.002

Table 4.

Associations with children's (6–17 years of age) sufficient sleep duration (A) and sleep quality (B).

Demographics Parent electronics Caffeine, bedtime rules Child electronics ON in bedroom




Variable Units OR Lower
95% CI
Upper
95% CI
P OR Lower
95% CI
Upper
95% CI
P OR Lower
95% CI
Upper
95% CI
P OR Lower
95% CI
Upper
95% CI
P
A. Sufficient sleep duration
  Child age Years 0.91 0.87 0.96 <.001 0.92 0.87 0.96 <.001 0.94 0.89 0.99 .01 0.96 0.92 1.02 .18
  Child gender F = 2/M = 1 0.82 0.59 1.16 .27 0.82 0.59 1.16 .27 0.81 0.58 1.14 .23 0.82 0.58 1.15 .25
  Parent race White = 1/nonwhite = 2 0.94 0.66 1.34 .72 0.92 0.65 1.32 .66 0.94 0.66 1.35 .75 0.90 0.63 1.28 .55
  Parent education College grad = 2 or not = 1 1.53 1.08 2.17 .02 1.51 1.06 2.15 .02 1.45 1.01 2.08 .045 1.38 0.97 1.98 .08
  Parent marital status Parent married = 1/not married = 2 0.62 0.40 0.95 .03 0.63 0.41 0.97 .04 0.65 0.42 1.00 .051 0.66 0.43 1.00 .051
  Parents electronics ON ≥1 device left ON in bedroom 0.85 0.60 1.20 .35 0.86 0.61 1.22 .40 1.11 0.78 1.59 .56
  Rules limit child caffeine Always enforce caffeine rules = 1 1.87 1.29 2.70 <.001 1.74 1.20 2.52 .003
  Bedtime rule enforced Always enforce bedtime rules = 1 0.88 0.57 1.38 .59 0.87 0.56 1.35 .52
  Child electronics ON ≥1 device left ON in bedroom 0.46 0.32 0.67 <.001
B. Excellent sleep quality
  Child age Years 0.94 0.89 0.98 .01 0.94 0.90 0.99 .01 0.97 0.92 1.01 .15 0.99 0.94 1.04 .62
  Child gender F = 2/M = 1 0.92 0.66 1.29 .64 0.92 0.66 1.29 .63 0.96 0.69 1.34 .81 0.98 0.70 1.37 .90
  Parent race White = 1/nonwhite = 2 1.13 0.80 1.59 .50 1.09 0.77 1.53 .63 1.13 0.80 1.60 .48 1.08 0.77 1.52 .66
  Parent education College grad = 2 or not = 1 1.09 0.78 1.51 .62 1.05 0.75 1.47 .76 1.08 0.77 1.53 .65 1.04 0.74 1.46 .84
  Parent marital status Parent married = 1 0.77 0.49 1.20 .24 0.81 0.52 1.27 .36 0.78 0.49 1.24 .29 0.80 0.51 1.26 .33
  Parents electronics ON ≥1 device left ON in bedroom 0.66 0.47 0.92 .02 0.67 0.48 0.93 .02 0.82 0.58 1.16 .26
  Rules limit child caffeine Always enforce caffeine rules = 1 1.22 0.84 1.77 .30 1.14 0.78 1.66 .500
  Bedtime rule enforced Always enforce bedtime rules = 1 2.08 1.37 3.14 <.001 2.06 1.36 3.10 <.001
  Child electronics ON ≥1 device left ON in bedroom 0.50 0.35 0.73 <.001

Sufficient sleep quality was defined as age-appropriate minimum weekly mean sleep duration by parental report (for 6–11 years of age, ≥9 hours/night, and for 12–17 years of age, ≥8 hours/night). Sleep quality was defined as a parental report of their child's excellent sleep quality. Regressions were calculated in blocks sequentially adding family demographics, parents' technology being left on in their bedroom overnight, rules on limiting child caffeine and enforcing bedtimes, and child's technology being left on in their bedroom overnight. Significant P values (<.05) are in boldface.