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Table 2 Associations between 3 behaviours and Average Academic Index, Maths and English academic performance

From: Associations between meeting sleep, physical activity or screen time behaviour guidelines and academic performance in Australian school children

 

Average Academic Index

Maths

English

 

N

Î’ (95%CI)

P-value

N

β

P-value

N

β

P-value

Sleep

 Weekday sleep (hrs/night)

829

0.05 (− 0.6, 0.7)

.888

824

−0.3 (−1.4, 0.8)

.614

772

0.02 (−0.6, 0.6)

.954

 Weekend sleep (hrs/night)

827

0.3 (− 0.2, 0.8)

.241

822

0.03 (− 0.9, 0.9)

.955

770

0.5 (0.06, 1.0)

.028

 Weekday bedtime ≥23:00

829

−1.1 (−3.3, 1.2)

.365

824

0.2 (−3.7, 4.0)

.939

772

−1.3 (− 3.4, 0.9)

.245

 Weekend bedtime ≥23:00

828

−3.4 (−5.0, −1.7)

<.001

823

−3.9 (−6.7, − 1.1)

.006

771

−2.1 (− 3.6, −0.6)

.005

 Poor sleep quality (vs not poor)

813

1.3 (−1.2, 3.8)

.305

808

1.3 (− 2.9, 5.5)

.549

756

−0.1 (−2.3, 2.2)

.958

 Meeting sleep guidelines

827

1.1 (−0.5, 2.8)

.170

822

0.7 (−2.1, 3.5)

.621

770

1.0 (−0.5, 2.5)

.174

PA

 Days getting 60 min MVPA

839

0.1 (−0.3, 0.5)

.586

834

0.2 (−0.4, 0.8)

.561

782

0.1 (−0.2, 0.4)

.632

 Participated in sport

837

0.3 (−2.3, 2.8)

.847

832

0.7 (−3.7, 5.1)

.747

780

−0.1 (−2.5, 2.3)

.916

 Unorganized play (hr/day)

836

−1.0 (−1.3, −0.6)

<.001

831

− 1.5 (−2.1, − 0.9)

<.001

779

−0.7 (− 1.0, − 0.3)

<.001

 Meeting PA guidelines

839

0.3 (− 1.5, 2.1)

.784

834

1.2 (− 1.9, 4.3)

.442

782

0.1 (− 1.5, 1.7)

.883

Sedentary

 Leisure screen behaviours (hrs/day)

831

−0.2 (− 0.3, − 0.2)

<.001

826

−0.3 (− 0.4, − 0.3)

<.001

772

−0.1 (− 0.2, − 0.1)

<.001

 Total sedentary behaviours (hrs/day)

831

− 0.1 (− 0.2, − 0.1)

<.001

826

−0.2 (− 0.3, − 0.2)

<.001

772

−0.1 (− 0.1, − 0.06)

<.001

 Meeting screen guidelines

831

5.8 (3.6, 8.0)

<.001

826

7.9 (4.1, 11.6)

<.001

772

3.8 (1.8, 5.8)

<.001

Meeting at least 2/3 guidelines (%)

833

2.3 (0.5, 4.0)

.010

828

3.4 (0.5, 6.4)

.021

774

1.6 (0.05, 3.1)

.043

  1. a General use e.g. visiting websites, online shopping, downloading music