Associations between Aspects of Friendship Networks, Physical Activity, and Sedentary Behaviour among Adolescents
Table 4
Odds ratios (OR) and 95% confidence intervals (95% CI) for the association between sociodemographic characteristics, social network variables, general perceived social support from friends, physical activity, and sedentary behaviour for girls ().
Sufficiently active (≥60 min of MVPA every day)
High sedentary (>2 hrs/day of sedentary behaviour)
Adjusted main effects OR (95% CI)
Adjusted main effects and interaction OR (95% CI)
Adjusted main effects OR (95% CI)
Adjusted main effects and interaction OR (95% CI)
Sociodemographic characteristics
School
A#
1.00
1.00
1.00
1.00
B
0.17 (0.03–1.04)
0.16 (0.03–1.00)
1.73 (0.78–3.88)
1.79 (0.80–4.03)
C
0.86 (0.24–3.15)
0.81 (0.22–2.94)
2.89 (1.22–6.83)*
3.10 (1.30–7.38)*
D
0.83 (0.16–4.24)
0.90 (0.17–4.66)
1.21 (0.46–3.18)
1.20 (0.46–3.16)
E
0.38 (0.07–2.01)
0.38 (0.07–2.07)
2.71 (1.03–7.13)*
2.85 (1.08–7.52)*
F
0.96 (0.19–4.73)
0.99 (0.20–4.89)
6.18 (1.94–19.64)*
6.87 (2.11–22.35)*
Age
12 yrs and younger#
1.00
1.00
1.00
1.00
13 yrs
0.68 (0.27–1.74)
0.69 (0.27–1.79)
1.19 (0.66–2.17)
1.16 (0.64–2.12)
14 yrs and older
0.50 (0.14–1.80)
0.48 (0.13–1.77)
1.61 (0.78–3.35)
1.63 (0.78–3.41)
Family affluence
Low#
1.00
1.00
1.00
1.00
Middle
0.88 (0.31–2.49)
0.79 (0.28–2.27)
1.11 (0.60–2.07)
1.09 (0.58–2.04)
High
1.46 (0.53–4.03)
1.41 (0.51–3.92)
1.15 (0.61–2.18)
1.16 (0.61–2.21)
Length of time in Canada
More than 5 years#
1.00
1.00
1.00
1.00
5 years or less
0.54 (0.15–2.01)
0.61 (0.16–2.28)
0.76 (0.37–1.55)
0.76 (0.37–1.56)
Number of times moved last year
Did not move#
1.00
1.00
1.00
1.00
Moved at least once
1.55 (0.70–3.42)
1.60 (0.72–3.54)
0.82 (0.48–1.40)
0.91 (0.53–1.58)
Social network characteristics
Density
Low (density <12%)#
1.00
1.00
1.00
1.00
High (density ≥12%)
1.05 (0.30–3.65)
1.07 (0.30–3.81)
1.43 (0.70–2.94)
1.48 (0.72–3.04)
Proportion of active close friends
1.14 (1.02–1.27)*
1.15 (1.03–1.28)*
0.94 (0.88–1.01)
0.94 (0.88–1.00)
Proportion of sedentary close friends
1.02 (0.88–1.19)
0.00 (0.00–0.90)*
0.96 (0.88–1.05)
0.96 (0.88–1.05)
Betweenness centrality
0.96 (0.87–1.07)
0.96 (0.86–1.06)
1.04 (0.97–1.11)
1.76 (0.96–3.22)
Popularity
0.99 (0.91–1.07)
0.98 (0.91–1.07)
1.03 (0.99–1.10)
1.03 (0.98–1.09)
Clique member
Member#
1.00
1.00
1.00
1.00
Not a member
0.84 (0.34–2.04)
0.75 (0.30–1.86)
1.38 (0.80–2.41)
39.86 (1.54–1034.20)*
General perceived social support from friendsa
1.06 (0.55–2.04)
0.14 (0.02–0.88)
0.98 (0.65–1.48)
1.88 (0.99–3.55)
Interactions
Proportion of sedentary close friends * General perceived social support from friends
1.31 (1.04–1.67)*
Clique member * General perceived social support from friends
0.38 (0.15–0.96)*
, #referent category, aaverage general perceived social support index: 1 = received support none of the time to 4 = received support all of the time in increments of 0.25, MVPA: moderate-to-vigorous physical activity, OR: odds ratio, CI: confidence interval.
