Body mass index, physical activity, and fracture among young adults: Longitudinal results from the thai cohort study

Jordan, Susan, Lim, Lynette, Berecki-Gisolf, Janneke, Bain, Chris, Seubsman, Sam-Ang., Sleigh, Adrian, Banks, Emily, Thai Cohort Team, Chokhanapitak, J., Churewong, C., Hounthasarn, S., Khamman, S., Pandee, D., Prapamontol, T., Pangsap, S., Puengson, J., Somboonsook, B., Sangrattanakul, Y., Sripaiboonkij, N., Somsamai, P., Vilainerun, D., Wimonwattanaphan, W., Banwell, C., Caldwell, B., Carmichael, G., Dellora, T., Dixon, J., Friel, S., Harley, D., Kjellstrom, T., Kelly, M., McMichael, A., Mark, T., Strazdins, L. and Yiengprugsawan, V. (2013) Body mass index, physical activity, and fracture among young adults: Longitudinal results from the thai cohort study. Journal of Epidemiology, 23 6: 435-442. doi:10.2188/jea.JE20120215

Author Jordan, Susan
Lim, Lynette
Berecki-Gisolf, Janneke
Bain, Chris
Seubsman, Sam-Ang.
Sleigh, Adrian
Banks, Emily
Thai Cohort Team
Chokhanapitak, J.
Churewong, C.
Hounthasarn, S.
Khamman, S.
Pandee, D.
Prapamontol, T.
Pangsap, S.
Puengson, J.
Somboonsook, B.
Sangrattanakul, Y.
Sripaiboonkij, N.
Somsamai, P.
Vilainerun, D.
Wimonwattanaphan, W.
Banwell, C.
Caldwell, B.
Carmichael, G.
Dellora, T.
Dixon, J.
Friel, S.
Harley, D.
Kjellstrom, T.
Kelly, M.
McMichael, A.
Mark, T.
Strazdins, L.
Yiengprugsawan, V.
Title Body mass index, physical activity, and fracture among young adults: Longitudinal results from the thai cohort study
Journal name Journal of Epidemiology   Check publisher's open access policy
ISSN 0917-5040
Publication date 2013-08-31
Year available 2013
Sub-type Article (original research)
DOI 10.2188/jea.JE20120215
Open Access Status DOI
Volume 23
Issue 6
Start page 435
End page 442
Total pages 8
Place of publication Dazaifu, Fukuoka, Japan
Publisher Japan Epidemiological Association
Language eng
Subject 2713 Epidemiology
Abstract Background: We investigated risk factors for fracture among young adults, particularly body mass index (BMI) and physical activity, which although associated with fracture in older populations have rarely been investigated in younger people. Methods: In 2009, 4 years after initial recruitment, 58 204 Thais aged 19 to 49 years were asked to self-report fractures incident in the preceding 4 years. Conditional logistic regression was used to calculate odds ratios (ORs) and 95% CIs for associations of fracture incidence with baseline BMI and physical activity. Results: Very obese women had a 70% increase in fracture risk (OR = 1.73, 95% CI 1.21-2.46) as compared with women with a normal BMI. Fracture risk increased by 15% with every 5-kg/m2increase in BMI. The effects were strongest for fractures of the lower limbs. Frequent purposeful physical activity was also associated with increased fracture risk among women (OR = 1.52, 95% CI 1.12-2.06 for 15 episodes/week vs none). Neither BMI nor physical activity was associated with fracture among men, although fracture risk decreased by 4% with every additional 2 hours of average sitting time per day (OR = 0.96, 95% CI 0.93-0.99). Conclusions: The increase in obesity prevalence will likely increase fracture burden among young women but not young men. While active lifestyles have health benefits, our results highlight the importance of promoting injury prevention practices in conjunction with physical activity recommendations, particularly among women.
Keyword Body size
Physical activity
Young adults
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID WT071587MA
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
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