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Table 4 Linear Mixed Models examining the association between changes in intramural programming in Y6 on MVPA in Y6 and Y7 of the COMPASS Study stratified by gender

From: Examining if changes in gender-specific and co-ed intramural programs affect youth physical activity over time: a natural experiment evaluation using school- and student-level data from the COMPASS study

Variable

Female n = 2402

Male n = 2015

Estimate

95% CI

p-value

Estimate

95% CI

p-value

Effect of Intramural Change on MVPA in Y6

Removed Intramurals (Reference)

–

 

–

–

–

–

Primarily Added Co-ed Intramurals

4.695

−0.699-10.089

0.088

−1.163

−7.32-4.998

0.711

Added Gender-Specific Intramurals

5.098

−2.382-12.578

0.182

−4.703

−13.194-3.787

0.278

No Net Change in Intramurals

2.236

−4.060-8.534

0.486

5.148

−1.780-12.075

0.145

Effect of Intramural Change on MVPA in Y7

Removed Intramurals (Reference)

–

–

–

–

–

–

Primarily Added Co-ed Intramurals

1.749

−3.66-7.159

0.526

0.411

−5.764-6.587

0.896

Added Gender-Specific Intramurals

7.507

−0.0126-15.027

0.050

−3.764

−12.276-4.748

0.692

No Net Change in Intramurals

−1.502

−12.079-9.075

0.781

8.747

−2.818-20.312

0.138

Grade

Grade 9 (Ref)

–

–

–

–

–

–

Grade 10

−8.428

−12.131--4.724

<.0001

−7.298

−11.421--3.175

<.0001

Year

−7.253

−12.391--2.348

0.004

−1.100

−6.554-4.353

0.692

Intramural Sport Participation

No (Ref)

–

–

–

–

–

–

Yes

4.998

1.7647–8.2318

0.003

9.728

6.051–13.406

<.0001

Varsity Sport Participation

No (Ref)

–

 

–

  

–

Yes

16.161

12.506–19.815

<.0001

18.003

13.902–22.104

<.0001

Community Sport Participation

No (Ref)

–

 

–

  

–

Yes

26.084

22.784–29.384

<.0001

20.310

16.520–24.101

<.0001

  1. Models controlled for changes in PA programs in Y6, median school neighbourhood income in Y5, school enrolment in Y5, number of intramurals in Y5, ethnicity and weekly spending money. Values significant at α= 0.05 are bolded