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Table 1 Sleep duration and Total time in bed of grade 5 children by gender, highest level of parental education, school region, household income, weight status, total daily exposure to devices and days of the week, Alberta, 2012

From: The use of entertainment and communication technologies before sleep could affect sleep and weight status: a population-based study among children

Variables

Frequency

(%)

Sleep duration (Hours)

p-value

Total Time in Bed (Hours)

p-value

Gender

 Girls

1235

(53.2)

9.85 (±0.56)

0.05

10.22 (±0.56)

0.01

 Boys

1071

(46.8)

9.82 (±0.58)

 

10.16 (±0.59)

 

Highest level of parental education

 No school/Elementary school

63

(3.0)

9.83 (±0.58)

0.65

10.19 (±0.58)

0.29

 Secondary/college

1391

(59.0)

9.86 (±0.54)

 

10.21 (±0.54)

 

 University

792

(38.0)

9.83 (±0.58)

 

10.17 (±0.59)

 

Region of elementary school

 Metropolitan

612

(49.0)

9.78 (±0.59)

<0.001

10.11 (±0.60)

<0.001

 City

781

(16.3)

9.90 (±0.57)

 

10.21 (±0.54)

 

 Rural/town

941

(34.7)

9.88 (±0.54)

 

10.24 (±0.58)

 

Household income

 < $50,000 (Low)

385

(19.7)

9.71 (±0.58)

<0.001

10.08 (±0.57)

<0.001

 $50,001 - $100,000 (Middle)

614

(26.6)

9.84 (±0.55)

 

10.21 (±0.55)

 

 > $100,000 (High)

684

(28.2)

9.90 (±0.55)

 

10.22 (±0.56)

 

 Don’t know/Prefer not to answer*

575

(25.5)

9.91 (±0.57)

 

10.22 (±0.59)

 

Weight category

 Thinness grade 3

20

(0.9)

10.06 (±0.63)

** < 0.001

10.38 (±0.63)

<0.001

 Thinness grade 2

49

(2.1)

9.91 (±0.71)

 

10.27 (±0.71)

 

 Thinness grade 1

233

(10.1)

9.98 (±0.51)

 

10.30 (±0.51)

 

 Normal

1503

(65.0)

9.88 (±0.57)

 

10.21 (±0.61)

 

 Overweight

399

(17.3)

9.75 (±0.60)

 

10.08 (±0.57)

 

 Obese

48

(2.1)

9.69 (±0.57)

 

10.01 (±0.01)

 

 Morbid Obese

3

(0.1)

9.80 (±0.14)

 

10.20 (±0.59)

 

Total daily exposure to devices (hours)

 < 2

438

(18.8)

9.97(±0.55)

<0.001

10.29 (±0.56)

<0.001

 2.0

1045

(44.1)

9.89 (±0.52)

 

10.22 (±0.53)

 

 3.5

48

(2.2)

9.71(±0.54)

 

10.04 (±0.51)

 

 4.0

264

(12.1)

9.82 (±0.62)

 

10.14 (±0.61)

 

 5.0

201

(9.5)

9.72 (±0.54)

 

10.07 (±0.66)

 

 5.5

318

(13.3)

9.78 (±0.60)

 

10.12 (±0.61)

 

Days of the week

 Week days

2276

(97.5)

9.78 (±0.64)

<0.001

10.12 (±0.63)

<0.001

 Weekend days

2.263

(97.0)

9.99 (±0.72)

 

10.37 (±0.79)

 
  1. *Household income category “Don’t know/Prefer not to answer” excluded from p trend calculations.
  2. **p values generated using an aggregate of ‘thinness grade 1’, thinness grade 2′ and thinness grade 3′ and ‘obese and morbid obese’ categories
  3. p value <0.05 was considered statistically significant
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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