Table 1 Baseline characteristics of the participants.

From: Effect of a 16-week multi-level classroom standing desk intervention on cognitive performance and academic achievement in adolescents

 

Intervention group (n = 22)

Control group (n = 27)

p value

Chronological age, years

11.8 ± 0.4

11.6 ± 0.5

0.144

Female

10 (45.5%)

16 (59.3%)

0.336

Caucasian

21 (95.5%)

26 (96.3%)

0.856

Peak height velocity, years

− 1.05 ± 1.15

− 0.93 ± 1.05

0.704

Body mass index, kg/m2

19.7 ± 3.0

18.9 ± 3.4

0.154

Academic achievement, total score

26.5 ± 5.0

27.0 ± 4.5

0.717

Corsi block test

Span, level

5.4 ± 1.0

5.3 ± 0.6

0.775

Total score

44.4 ± 15.2

40.6 ± 9.6

0.501

Stroop test

Congruent phase

 Reaction time, ms

1697.5 ± 230.0

1638.4 ± 186.0

0.325

 Accuracy, %

97.7 ± 3.8

98.8 ± 3.0

0.287

Neutral phase

 Reaction time, ms

1781.1 ± 252.7

1768.9 ± 227.6

0.984

 Accuracy, %

98.5 ± 3.3

98.5 ± 4.0

0.802

Incongruent phase

 Reaction time, ms

2114.2 ± 341.4

2184.2 ± 227.2

0.278

 Accuracy, %

94.7 ± 7.5

91.4 ± 14.3

0.608

d2 test

Accuracy, %

71.1 ± 29.1

63.7 ± 30.8

0.332

Raven matrices test

Standard score, percentile

75.8 ± 25.3

68.7 ± 25.4

0.412