Relating outdoor play to sedentary behavior and physical activity in youth - results from a cohort study

BMC Public Health

Table 4 Study 1 – Multiple linear regression model predicting sedentary behavior (minutes/day)

	Unstandardized beta	Standard Error	Standardized beta	P	95%-CI
Model 1
Intercept	611.19	3.84		< 0.001	603.66; 618.72
Outdoor play
Low (< 1 h day)	0 (Ref)
Medium (1–2 h/day)	−81.37	5.70	−0.31	< 0.001	−92.55; −70.19
High (≥2 h/day)	−109.48	6.05	−0.40	< 0.001	− 121.35; − 97.61
Model 2
Intercept	199.07	10.56		< 0.001	178.36; 219.78
Outdoor play
Low (< 1 h day)	0 (Ref)
Medium (1–2 h/day)	−9.75	4.10	−0.04	0.017	−17.78; − 1.72
High (≥2 h/day)	−17.78	4.50	−0.06	< 0.001	− 26.60; − 8.97
Age (years)	28.32	0.55	0.76	< 0.001	27.24; 29.40
Sex
Male	0 (Ref)
Female	18.06	3.31	0.07	< 0.001	11.56; 24.56
BMI
Normal weight	0 (Ref)
Underweight	2.95	5.72	0.01	0.606	−8.27; 14.17
Overweight	−4.87	4.93	−0.01	0.323	−14.52; 4.80
Obese	−8.32	8.64	−0.01	0.336	−25.25; 8.62
Socio-economic status
Low	0 (Ref)
Middle	−0.78	6.35	− 0.003	0.902	−13.24; 11.68
High	2.28	6.86	0.01	0.740	−11.16; 15.72

Model 1: Unadjusted model; Model 2: Adjusted model with the socio-demographic predictors age, sex, BMI, and socio-economic status. Abbreviations: CI = confidence interval; BMI = body mass index

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