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Table 1 Student and school demographics, academic achievement, and physical activity data, Grades 4 to 5

From: The longitudinal association between objectively-measured school-day physical activity and academic achievement in US elementary school students

Student-level data, n = 4936 a

Variable

Count / mean

% / SD

% missing data

Sex

 Female

2466

(50.0%)

0

 Male

2465

(49.9%)

Race/Ethnicity

 Asian

601

(12.2%)

0.1

 Black

1243

(25.2%)

 Hispanic

1640

(33.2%)

 Mixed

213

(4.3%)

 White

1226

(24.8%)

Free/Reduced-Price Lunch Recipient

 Yes

2622

(53.1%)

0.1

 No

2309

(46.8%)

English Language Learner

 Yes

1735

(35.1%)

0.1

 No

3196

(64.7%)

Student With Disabilities

 Yes

637

(12.9%)

0.1

 No

4294

(87.0%)

Grade 3 Absences (%)

3.1

(3.0)

0.1

Grade 3 Tardies (%)

1.9

(3.6)

0.1

Special Education Participant

 Yes

242

(4.9%)

0

 No

4694

(95.1%)

Treatment Group

 Intervention

2621

(53.1%)

0

 Control

2315

(46.9%)

Grade 3 Mean Course Grades

 Math

83.5

(9.4)

8.4

 Reading

82.9

(9.0)

8.4

 Spelling

87.9

(9.0)

12.2

 Writing

84.4

(7.8)

9.1

Grade 4 Fall (T1) Course Grades

 Math

81.5

(12.0)

2.1

 Reading

80.9

(10.3)

2.0

 Spelling

86.7

(11.3)

5.4

 Writing

83.2

(8.9)

2.0

Grade 4 Spring (T2) Course Grades

 Math

83.2

(10.6)

3.3

 Reading

81.8

(9.9)

3.0

 Spelling

87.3

(10.2)

5.2

 Writing

83.8

(8.7)

3.3

Grade 5 Fall (T3) Course Gradesb

 Math

82.0

(11.5)

15.1

 Reading

82.4

(9.4)

14.4

 Spelling

87.6

(9.6)

16.5

 Writing

84.9

(8.2)

15.0

Grade 3 Standardized Test Scoresc

 Math

541.4

(49.9)

6.0

 English Language Arts

527.1

(58.2)

6.0

 Lexile

728.6

(219.6)

6.0

Grade 4 (T2) Standardized Test Scoresc

 Math

549.2

(53.7)

3.3

 English Language Arts

535.2

(55.5)

3.3

 Lexile

897.2

(221.1)

3.3

Mean daily school-day moderate-to-vigorous physical activity (MVPA) minutes

 T1

21.1

(9.2)

12.5

 T2

21.9

(10.0)

23.0

 T3

18.9

(8.9)

27.3

Mean valid days of school-day accelerometer data by semester

 T1

4.58

(0.65)

12.5

 T2

4.23

(0.73)

23.0

 T3

4.52

(0.67)

27.3

Mean percent accelerometer wear time by semester (%)

 T1

98.5

(2.1)

12.5

 T2

96.4

(4.6)

23.0

 T3

98.3

(2.3)

27.3

Minutes of mean daily school-day MVPA, categorical, T1d

  < =15

1247

(25.7%)

12.5

 15 < x < =30

2856

(58.9%)

 30+

748

(15.4%)

Minutes of mean daily school-day MVPA, categorical, T2d

  < =15

1255

(25.9%)

23.0

 15 < x < =30

2628

(54.2%)

 30+

968

(20.0%)

Minutes of mean daily school-day MVPA, categorical, T3d

  < =15

1532

(36.2%)

27.3

 15 < x < =30

2248

(53.1%)

 30+

453

(10.7%)

School-level data (n = 40)

 Variables

% / mean

% / SD

% missing data

 School % Female

48.6%

(4.2)

0

 School % Black

27.3%

(12.1)

0

 School % Hispanic

32.2%

(19.8)

0

 School % FRL

56.1%

(26.7)

0

Teacher Departmentalization

 Yes

133

(46.5%)

0

 No

153

(53.5%)

  1. aNot all tabulations add to 4936 due to missing data
  2. bDue to COVID-related disruptions, Grade 5 Spring course grades are not incorporated in analyses
  3. cDue to COVID-related disruptions, no standardized tests were conducted in Grade 5
  4. dValues from imputed data