Table 7 Effects of household / family characteristics, school characteristics and adolescent’s characteristics on adolescent’s moderate-to-vigorous physical activity at school (sub-sample^a), and the moderating effects of adolescent’s gender (Step 3 of mediation analysis)

e^b (95% CI)

p

e^b (95% CI)

p

Highest educational attainment in the household

Main - direct

1.02 (0.98,1.06)

0.399

1.06 (1.01,1.11)

0.029

Number of motor vehicles in the household

Main - direct

0.99 (0.93,1.06)

0.816

0.99 (0.92,1.07)

0.849

Number of children in the household

Main - direct

0.93 (0.87,0.99)

0.018

0.99 (0.93,1.07)

0.891

Neighbourhood self-selection related to PA

Main -direct

0.98 (0.92,1.04)

0.462

1.02 (0.94,1.10)

0.642

Neighbourhood socio-economic status

Main - direct

1.35 (1.18,1.54)

< 0.001

1.11 (0.97,1.26)

0.124

Household income

Main - direct

0.99 (0.97,1.01)

0.337

0.99 (0.96,1.01)

0.309

Parental rules for PA

Main - direct

0.98 (0.97,0.99)

0.005

0.99 (0.97,1.00)

0.084

Social support for PA from parents

Main - direct

0.99 (0.93,1.04)

0.605

1.03 (0.96,1.10)

0.399

PA equipment at home / neighbourhood

Main - direct

0.99 (0.97,1.01)

0.542

0.99 (0.97,1.01)

0.396

Parental leisure-time PA^

Main - direct

1.00 (0.99,1.01)

0.655

0.99 (0.98,1.00)

0.025

Parental transportation PA^

Main - direct

1.00 (0.99,1.01)

0.735

1.01 (0.99,1.02)

0.275

 School PA-friendly index^‡

Main - direct

0.99 (0.96,1.02)

0.462

1.02 (0.98,1.06)

0.285

In boys

N/A

N/A

0.98 (0.93,1.03)

0.455

In girls

N/A

N/A

1.06 (1.02,1.12)

0.008

 Social support from peers

Main - direct

1.00 (0.95,1.04)

0.884

0.97 (0.92,1.02)

0.287

 Attitude towards PA

Main - direct

1.13 (0.99,1.29)

0.073

1.09 (0.93,1.28)

0.275

 Enjoyment of PA

Main - direct

1.03 (0.97,1.08)

0.332

1.07 (1.01,1.15)

0.032

 Athletic ability

Main - direct

1.04 (0.99,1.09)

0.104

1.03 (0.97,1.09)

0.373