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Table 1 Sample characteristics of grade 5 students participating in the CLASS II Project in Nova Scotia, Canada

From: The combined impact of diet, physical activity, sleep and screen time on academic achievement: a prospective study of elementary school students in Nova Scotia, Canada

Characteristics

n = 4253

Age, mean (SD), years

11.0 (0.4)

Proportion Male (sex), %

47.2

Overweight or obese, %

34.7

Energy Intake, mean (SD), kcal

1849.9 (808.1)

Percentage of children who are meeting lifestyle behavior recommendations, %

%

 Vegetables and Fruits (6 servings)

32.2

 Grain Products (6 servings)

20.8

 Milk and Alternatives (3–4 servings)

56.0

 Meat and Alternatives (1–2 servings)

86.4

 Saturated Fat Intake (<10% total energy)

54.3

 Free Sugars (<10% total energy)

62.6

 Physical Activity (PAQ-C Score >=2.7 for girls, >=2.9 for boys)

76.7

 Sleep Duration (9–11 h)

91.1

 Screen Time (<=2 h day of television)

77.8

Percentage of children meeting multiple lifestyle behavior recommendations, %

%

 Low (1–3)

7.9

 Medium (4–6)

64.7

 High (7–9)

27.5

Academic Achievement, % meeting expectations

%

 Reading

87.4

 Writing

89.1

 Mathematics

70.6

Parental Education, %

%

 Secondary or Less

17.3

 College Diploma

38.4

 University or Graduate degree

36.3

 Missing/Prefer not to answer

8.0

Household Income (CAN$), %

%

 <=20,000

20.3

 20,001–40,000

13.3

 40,001–60,000

24.1

 >=60,001

19.8

 Missing/Prefer not to answer

22.5

Region of Residence, %

%

 Urban

69.7

 Rural

30.3