. 2015 Dec 28;10(12):e0145344. doi: 10.1371/journal.pone.0145344

Table 3. Regression models for personal network characteristic predictors of PA for males and females.

Males	MVPA min/day			After school MVPA SR			Weekend MVPA SR
	(accelerometer)			(≥ 30 min/day)			(≥ 60 min/day)
	Coef	95% CI	^p	OR	95% CI	p	OR	95% CI	p
Total friends (outdegree)	-0.56	-1.97, 0.85	0.44	1.33	1.09, 1.62	<0.01	1.38	1.15, 1.66	<0.01
% of same sex friends ¹	2.01	-6.86, 10.87	0.66	1.49	0.45, 4.93	0.52	4.43	1.53, 12.8	<0.01
% usually play sport with ²	0.29	-0.85, 1.43	0.62	0.96	0.82, 1.13	0.60	0.97	0.85, 1.11	0.70
% very active ²			NS	1.08	0.93, 1.25	0.31	0.98	0.85, 1.12	0.74
% very frequent interaction ³ ^, ⁴			CV	3.01	1.13, 8.01	0.03	2.92	1.24, 6.86	0.01
% very active after school friends ³	9.37	1.71, 17.03	0.02			CV			CV
Females	MVPA min/day			After school MVPA SR			Weekend MVPA SR
	(accelerometer)			(≥ 30 min/day)			(≥ 60 min/day)
	No significant predictors			OR	95% CI	p	OR	95% CI	p
Total friends (outdegree)				1.09	0.97, 1.23	0.14	1.06	0.96, 1.18	0.26
% of same sex friends ¹						NS	0.78	0.36, 1.69	0.53
% usually play sport with ²				1.15	1.03, 1.28	0.01	1.09	1.00, 1.20	0.06
% very active ²				1.08	0.97, 1.21	0.18	1.14	1.03, 1.26	0.01
% very frequent interaction ³ ^, ⁴						NS	2.36	1.24, 4.49	<0.01
Males	Recess MVPA			Lunch time MVPA			Cycle to/from school
	(SR rating)			(SR rating)			(no. of times)
	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p
Total friends (outdegree)	1.04	0.86, 1.25	0.69	1.16	0.96, 1.40	0.12	1.08	0.91, 1.28	0.37
% of same sex friends ¹	8.22	2.29, 29.54	<0.01	4.71	1.45, 15.30	0.01	2.17	0.66, 7.10	0.20
% usually play sport with ²	1.02	0.88, 1.18	0.84	1.12	0.97, 1.29	0.11			NS
% very active ²	1.09	0.94, 1.27	0.23	1.07	0.92, 1.24	0.37			NS
% very frequent interaction ³ ^, ⁴	2.14	0.79, 5.82	0.14	2.65	0.95, 7.37	0.06			NS
% very active after school friends ³			CV			CV	3.66	1.54, 8.71	<0.01
Females	Recess MVPA			Lunch time MVPA			Cycle to/from school
	(SR rating)			(SR rating)			(no. of times)
	OR	95% CI	p	OR	95% CI	p	No significant predictors
Total friends (outdegree)	0.96	0.86, 1.07	0.43	0.96	0.85, 1.08	0.47
% of same sex friends ¹	0.74	0.34, 1.61	0.44	0.52	0.23, 1.18	0.12
% usually play sport with ²	1.11	1.00, 1.22	0.04	1.14	1.03, 1.26	0.01
% very active ²	1.06	0.95, 1.17	0.28	1.06	0.95, 1.18	0.29
% very frequent interaction ³ ^, ⁴			NS	1.03	0.52, 2.04	0.93

OR, odds ratio; 95% CI, 95% confidence interval; MVPA, moderate to vigorous physical activity; PA, physical activity; SR, self-report

CV, correlated with other variable within model; NS, model not significant if variable included

All models controlled for individual level (age and weight status) and school level covariates. Objective measured PA models controlled for accelerometer wear time.

p, test value, boldface indicates statistical significance (p<0.05)

¹. Binary variable recoded as either 100% or less than 100%;

². 10-point scale variable;

³. Binary variable coded as either 0% or greater than 0%;

⁴. Frequency of interaction at least 3 of 4 from recess, lunch, after school or weekends