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Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population.

Publication ,  Journal Article
Anuradha, S; Healy, GN; Dunstan, DW; Tai, ES; Van Dam, RM; Lee, J; Nang, EEK; Owen, N; Wong, T-Y
Published in: Invest Ophthalmol Vis Sci
August 17, 2011

PURPOSE. The aim of this study was to examine the relationship of physical activity and television (TV) viewing time with retinal vascular caliber in a multiethnic Asian population. METHODS. Chinese, Indian, and Malay participants (n = 3866) were examined cross-sectionally in the Singapore Prospective Study Program (2004-2007). Leisure-time physical activity and TV viewing time were assessed by the use of an interviewer-administered questionnaire. Retinal arteriolar and venular calibers were measured from digital retinal photographs. RESULTS. After adjusting for demographic, behavioral, and medical factors, those in the lowest quartile of leisure-time physical activity had a wider venular caliber (by 1.51 μm; 95% confidence interval [CI], 0.01-2.92) compared with those in the highest quartile. Using sex- and ethnicity-specific quartiles, stronger associations were noted in males (2.23 μm; 95% CI, 0.10-4.38) and Chinese (2.52 μm; 95% CI, 0.44-4.59) participants. Females who watched >2 hours of TV per day had a narrow arteriolar caliber (by 1.28 μm; 95% CI, -2.56--0.03), compared with the arteriolar caliber of those who watched less TV. CONCLUSIONS. Lower physical activity and higher TV viewing time (in females) were adversely associated with retinal microvascular caliber among Asian adults. Additional cross-sectional and longitudinal studies are needed to further clarify the potential mediating role of the microvasculature in the relationship between these behavioral risk factors and poor cardiometabolic health outcomes.

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Published In

Invest Ophthalmol Vis Sci

DOI

EISSN

1552-5783

Publication Date

August 17, 2011

Volume

52

Issue

9

Start / End Page

6522 / 6528

Location

United States

Related Subject Headings

  • Young Adult
  • Time Factors
  • Television
  • Singapore
  • Retinal Vein
  • Retinal Artery
  • Prospective Studies
  • Ophthalmology & Optometry
  • Middle Aged
  • Male
 

Citation

APA
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ICMJE
MLA
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Anuradha, S., Healy, G. N., Dunstan, D. W., Tai, E. S., Van Dam, R. M., Lee, J., … Wong, T.-Y. (2011). Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population. Invest Ophthalmol Vis Sci, 52(9), 6522–6528. https://doi.org/10.1167/iovs.11-7324
Anuradha, Satyamurthy, Genevieve N. Healy, David W. Dunstan, E Shyong Tai, Rob M. Van Dam, Jeannette Lee, Ei Ei Khaing Nang, Neville Owen, and Tien-Yin Wong. “Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population.Invest Ophthalmol Vis Sci 52, no. 9 (August 17, 2011): 6522–28. https://doi.org/10.1167/iovs.11-7324.
Anuradha S, Healy GN, Dunstan DW, Tai ES, Van Dam RM, Lee J, et al. Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population. Invest Ophthalmol Vis Sci. 2011 Aug 17;52(9):6522–8.
Anuradha, Satyamurthy, et al. “Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population.Invest Ophthalmol Vis Sci, vol. 52, no. 9, Aug. 2011, pp. 6522–28. Pubmed, doi:10.1167/iovs.11-7324.
Anuradha S, Healy GN, Dunstan DW, Tai ES, Van Dam RM, Lee J, Nang EEK, Owen N, Wong T-Y. Associations of physical activity and television viewing time with retinal vascular caliber in a multiethnic Asian population. Invest Ophthalmol Vis Sci. 2011 Aug 17;52(9):6522–6528.

Published In

Invest Ophthalmol Vis Sci

DOI

EISSN

1552-5783

Publication Date

August 17, 2011

Volume

52

Issue

9

Start / End Page

6522 / 6528

Location

United States

Related Subject Headings

  • Young Adult
  • Time Factors
  • Television
  • Singapore
  • Retinal Vein
  • Retinal Artery
  • Prospective Studies
  • Ophthalmology & Optometry
  • Middle Aged
  • Male