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Television viewing time is associated with overweight/obesity among older adults, independent of meeting physical activity and health guidelines.
J Epidemiol 2012; 22(1):50-6JE

Abstract

BACKGROUND

Previous studies have shown associations of sedentary behavior with cardiovascular risk, independent of moderate-to-vigorous physical activity (MVPA). However, few studies have focused on older adults. This study examined the joint associations of television (TV) viewing time and MVPA with overweight/obesity among Japanese older adults.

METHODS

A population-based, cross-sectional mail survey was used to collect self-reported height, weight, time spent in TV viewing, and MVPA from 1806 older adults (age: 65-74 years, men: 51.1%). Participants were classified into 4 categories according to TV viewing time (dichotomized into high and low around the median) and MVPA level (dichotomized into sufficient and insufficient by the physical activity guideline level of ≥ 150 minutes/week). Odds ratios (ORs) for overweight/obesity (body mass index ≥ 25 kg/m²) were calculated according to the 4 TV/MVPA categories, adjusting for potential confounders.

RESULTS

Of all participants, 20.1% were overweight/obese. The median TV viewing time (25th, 75th percentile) was 840 (420, 1400) minutes/week. As compared with the reference category (high TV/insufficient MVPA), the adjusted ORs (95% CI) of overweight/obesity were 0.93 (0.65, 1.34) for high TV/sufficient MVPA, 0.58 (0.37, 0.90) for low TV/insufficient MVPA, and 0.67 (0.47, 0.97) for low TV/sufficient MVPA.

CONCLUSIONS

In this sample of older adults, spending less time watching TV, a predominant sedentary behavior, was associated with lower risk of being overweight or obese, independent of meeting physical activity guidelines. Further studies using prospective and/or intervention designs are warranted to confirm the presently observed effects of sedentary behavior, independent of physical activity, on the health of older adults.

Authors+Show Affiliations

Department of Preventive Medicine and Public Health, Tokyo Medical University, Japan. inoue@tokyo-med.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22156288

Citation

Inoue, Shigeru, et al. "Television Viewing Time Is Associated With Overweight/obesity Among Older Adults, Independent of Meeting Physical Activity and Health Guidelines." Journal of Epidemiology, vol. 22, no. 1, 2012, pp. 50-6.
Inoue S, Sugiyama T, Takamiya T, et al. Television viewing time is associated with overweight/obesity among older adults, independent of meeting physical activity and health guidelines. J Epidemiol. 2012;22(1):50-6.
Inoue, S., Sugiyama, T., Takamiya, T., Oka, K., Owen, N., & Shimomitsu, T. (2012). Television viewing time is associated with overweight/obesity among older adults, independent of meeting physical activity and health guidelines. Journal of Epidemiology, 22(1), pp. 50-6.
Inoue S, et al. Television Viewing Time Is Associated With Overweight/obesity Among Older Adults, Independent of Meeting Physical Activity and Health Guidelines. J Epidemiol. 2012;22(1):50-6. PubMed PMID: 22156288.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Television viewing time is associated with overweight/obesity among older adults, independent of meeting physical activity and health guidelines. AU - Inoue,Shigeru, AU - Sugiyama,Takemi, AU - Takamiya,Tomoko, AU - Oka,Koichiro, AU - Owen,Neville, AU - Shimomitsu,Teruichi, Y1 - 2011/12/10/ PY - 2011/12/14/entrez PY - 2011/12/14/pubmed PY - 2012/5/1/medline SP - 50 EP - 6 JF - Journal of epidemiology JO - J Epidemiol VL - 22 IS - 1 N2 - BACKGROUND: Previous studies have shown associations of sedentary behavior with cardiovascular risk, independent of moderate-to-vigorous physical activity (MVPA). However, few studies have focused on older adults. This study examined the joint associations of television (TV) viewing time and MVPA with overweight/obesity among Japanese older adults. METHODS: A population-based, cross-sectional mail survey was used to collect self-reported height, weight, time spent in TV viewing, and MVPA from 1806 older adults (age: 65-74 years, men: 51.1%). Participants were classified into 4 categories according to TV viewing time (dichotomized into high and low around the median) and MVPA level (dichotomized into sufficient and insufficient by the physical activity guideline level of ≥ 150 minutes/week). Odds ratios (ORs) for overweight/obesity (body mass index ≥ 25 kg/m²) were calculated according to the 4 TV/MVPA categories, adjusting for potential confounders. RESULTS: Of all participants, 20.1% were overweight/obese. The median TV viewing time (25th, 75th percentile) was 840 (420, 1400) minutes/week. As compared with the reference category (high TV/insufficient MVPA), the adjusted ORs (95% CI) of overweight/obesity were 0.93 (0.65, 1.34) for high TV/sufficient MVPA, 0.58 (0.37, 0.90) for low TV/insufficient MVPA, and 0.67 (0.47, 0.97) for low TV/sufficient MVPA. CONCLUSIONS: In this sample of older adults, spending less time watching TV, a predominant sedentary behavior, was associated with lower risk of being overweight or obese, independent of meeting physical activity guidelines. Further studies using prospective and/or intervention designs are warranted to confirm the presently observed effects of sedentary behavior, independent of physical activity, on the health of older adults. SN - 1349-9092 UR - https://www.unboundmedicine.com/medline/citation/22156288/Television_viewing_time_is_associated_with_overweight/obesity_among_older_adults_independent_of_meeting_physical_activity_and_health_guidelines_ L2 - http://joi.jlc.jst.go.jp/JST.JSTAGE/jea/JE20110054?from=PubMed DB - PRIME DP - Unbound Medicine ER -