OBJECTIVE: To explore the association between home environmental variables and television (TV) time, and the mediating pathways underlying this association. METHODS: The current study used data from the longitudinal ENDORSE study. Self-reported data was available for 1 265 adolescents (mean age of 12-15 years at baseline) on home environment (availability of a TV in the bedroom, perceived parental modelling, family rules), potential mediators (intention, attitude, perceived behavioural control, subjective norm towards TV viewing) and TV viewing time. Mediation analyses were conducted using General Estimating Equations and mediation effects were calculated as the product-of-coefficients. RESULTS: Significant overall positive associations were found for the presence of a TV in the bedroom and parental modelling with self-reported TV viewing. Controlling family rules showed an inverse association with reported TV time. Similarly, parental modelling and a TV in the bedroom were significantly positively associated with the Theory of Planned Behaviour variables and habit strength, while family rules showed an inverse association with these potential mediators. In turn, most potential mediators were positively associated with TV viewing. Intention, attitude and habit strength were the strongest mediators in all three associations explaining more than 55% of the overall association. Habit strength alone explained 38.2%-58.0% of the overall associations. CONCLUSIONS: Home and family environmental predictors of TV time among adolescents may be strongly mediated by habit strength and other personal factors. Future intervention studies should explore if changes in home and family environments indeed lead to reductions in TV time through these mediators.
OBJECTIVE: To explore the association between home environmental variables and television (TV) time, and the mediating pathways underlying this association. METHODS: The current study used data from the longitudinal ENDORSE study. Self-reported data was available for 1 265 adolescents (mean age of 12-15 years at baseline) on home environment (availability of a TV in the bedroom, perceived parental modelling, family rules), potential mediators (intention, attitude, perceived behavioural control, subjective norm towards TV viewing) and TV viewing time. Mediation analyses were conducted using General Estimating Equations and mediation effects were calculated as the product-of-coefficients. RESULTS: Significant overall positive associations were found for the presence of a TV in the bedroom and parental modelling with self-reported TV viewing. Controlling family rules showed an inverse association with reported TV time. Similarly, parental modelling and a TV in the bedroom were significantly positively associated with the Theory of Planned Behaviour variables and habit strength, while family rules showed an inverse association with these potential mediators. In turn, most potential mediators were positively associated with TV viewing. Intention, attitude and habit strength were the strongest mediators in all three associations explaining more than 55% of the overall association. Habit strength alone explained 38.2%-58.0% of the overall associations. CONCLUSIONS: Home and family environmental predictors of TV time among adolescents may be strongly mediated by habit strength and other personal factors. Future intervention studies should explore if changes in home and family environments indeed lead to reductions in TV time through these mediators.
Authors: Amy van Grieken; Lydian Veldhuis; Carry M Renders; Gerard J Borsboom; Johannes C van der Wouden; Remy A Hirasing; Hein Raat Journal: PLoS One Date: 2013-05-31 Impact factor: 3.240
Authors: Saskia J te Velde; Amika Singh; Mai Chinapaw; Ilse De Bourdeaudhuij; Natasa Jan; Eva Kovacs; Elling Bere; Froydis N Vik; Bettina Bringolf-Isler; Yannis Manios; Luis Moreno; Johannes Brug Journal: PLoS One Date: 2014-11-05 Impact factor: 3.240
Authors: Saskia J te Velde; Mai J M ChinAPaw; Ilse De Bourdeaudhuij; Elling Bere; Lea Maes; Luis Moreno; Nataša Jan; Eva Kovacs; Yannis Manios; Johannes Brug Journal: Int J Behav Nutr Phys Act Date: 2014-07-08 Impact factor: 6.457
Authors: Cornelia E Rebholz; Mai J M Chinapaw; Maartje M van Stralen; Elling Bere; Bettina Bringolf; Ilse De Bourdeaudhuij; Nataša Jan; Eva Kovacs; Lea Maes; Yannis Manios; Luis Moreno; Amika S Singh; Johannes Brug; Saskia J te Velde Journal: BMC Public Health Date: 2014-09-05 Impact factor: 3.295