Costa, S;
Johnson, W;
Viner, RM;
(2014)
Early childhood TV viewing and subsequent BMI trajectories to mid-adulthood in the 1970 British Cohort Study.
Presented at: ISBNPA 2014 Annual Meeting, San Diego, CA, USA.
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Abstract
Objective: To investigate whether TV viewing more than recommended thresholds (<2 hours/day) in early childhood is associated with trajectories of overweight and obesity (OW/OB). Methods: Participants from the 1970 British Cohort Study with complete BMI data at age 10, 26-30, 34 and 42 years (n=4174; 2392 females) were selected and their BMI classified according to the International Obesity Task Force cut-points. Trajectories of OW/OB were categorised as: "never OW/OB", "mid-adulthood onset" (OW/OB at 42 years only), "early adulthood onset" (OW/OB from 26, 30, or 34 years), "always OW/OB", and "other". Of those selected participants, 3347 (1926 females) had information on TV viewing at 5 years and were included for analysis. Multinomial logistic regression was used to assess associations between excessive TV viewing (≥2 hours/day) and trajectories of OW/OB (outcome). Results: More boys watched TV for ≥2 hours/day at 5 years than girls (32.3% versus 28.3%; p=0.01). Excessive TV viewing significantly increased the risk of being always OW/OB both in males (relative risk ratio=2.52; 95% confidence interval: 1.50-4.24) and females (1.74; 1.16-2.61), and of early adulthood onset in females (1.39; 1.10-1.75), compared to never being OW/OB in unadjusted analyses (all p<0.01). The increased risk of being always OW/OB remained significant for males (2.45; 1.40-4.29; p=0.002) but not females (1.37; 0.89-2.12; p=0.15) when adjusted for childhood socioeconomic status, maternal education and maternal BMI in childhood. Conclusions: Excessive early childhood TV viewing is associated with unhealthy later weight trajectories and likely represents an important preventive opportunity that requires further study.
Type: | Conference item (Presentation) |
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Title: | Early childhood TV viewing and subsequent BMI trajectories to mid-adulthood in the 1970 British Cohort Study |
Event: | ISBNPA 2014 Annual Meeting |
Location: | San Diego, CA, USA |
Dates: | 21 May 2014 - 24 May 2014 |
Open access status: | An open access version is available from UCL Discovery |
Publisher version: | http://www.isbnpa2014.org/ |
Additional information: | Poster presentation |
UCL classification: | UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Population, Policy and Practice Dept |
URI: | https://discovery.ucl.ac.uk/id/eprint/1430709 |
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