Table 2 The multivariate logistic regression analysis for school records in relation to the PA patterns

Boys

39,612

Academic performance ≥ Average (yes/no)

No vigorous PA

7,314

Reference

Once a week

7,067

1.029

0.925–1.145

0.602

Twice a week

7,847

1.198

1.080–1.329

0.001**

Thrice a week

6,994

1.287

1.156–1.433

<0.001***

4 times a week

3,066

1.265

1.117–1.433

<0.001***

5 times a week or more

7,324

0.886

0.801–0.981

0.020*

No moderate PA

7,946

Reference

Once a week

8,379

1.121

1.021–1.232

0.017*

Twice a week

8,351

1.337

1.216–1.471

<0.001***

Thrice a week

6,401

1.460

1.315–1.621

<0.001***

4 times a week

2,539

1.363

1.183–1.570

<0.001***

5 times a week or more

5,996

1.135

1.013–1.271

0.029*

No strengthening exercises

13,290

Reference

Once a week

8,413

0.968

0.894–1.048

0.423

Twice a week

6,354

1.076

0.978–1.183

0.132

Thrice a week

4,804

1.021

0.920–1.132

0.700

4 times a week

1,966

0.910

0.785–1.054

0.209

5 times a week or more

4,785

0.828

0.754–0.910

<0.001***

Girls

35,454

Academic performance ≥ Average (yes/no)

No vigorous PA

15,676

Reference

Once a week

7,540

1.074

0.988–1.168

0.094

Twice a week

5,628

0.958

0.869–1.057

0.396

Thrice a week

3,661

0.943

0.832–1.069

0.361

4 times a week

1,009

1.073

0.879–1.309

0.488

5 times a week or more

1,940

1.532

1.336–1.757

<0.001***

No moderate PA

13,059

Reference

Once a week

8,640

1.034

0.947-1.129

0.455

Twice a week

6,471

1.113

1.008–1.229

0.035*

Thrice a week

4,032

1.306

1.161–1.468

<0.001***

4 times a week

1,164

1.065

0.893–1.270

0.481

5 times a week or more

2,088

0.904

0.797–1.024

0.111

No strengthening exercises

21,540

Reference

Once a week

7,045

0.995

0.922–1.075

0.906

Twice a week

3,286

0.928

0.834–1.034

0.176

Thrice a week

1,898

0.997

0.867–1.147

0.969

4 times a week

564

0.764

0.579–1.009

0.058

5 times a week or more

1,121

0.739

0.618–0.883

0.001**