nguyen thi thanh huong hanoi medical university hanoi, vietnam
TRANSCRIPT
Nguyen Thi Thanh Huong
Hanoi Medical UniversityHanoi, Vietnam
2025
2050
2007
The Urbanization of the world
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70% of the population will be in urban regions by 2050
World Urbanization Prospects: the 2007 Revision
Urban population
Rural population
6.4 billion
Equal
total world population
in 2004
2008
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1950 1960 1970 1980 1990 2000 2010 2020 2030 2040 2050
Most of urban population will be absorbed in less developed regions
Urban population, less developed
World Urbanization Prospects: the 2007 Revision
> 60% will be in Asia
Incidence of hip fracture was higher in Oceania, N. America , and Europe
1. B. Gullberg, et al, Osteoporosis Int , 19972. Anonymous, World Urbanization Prospects: The 2007 Revision
< 20% 21-40 41-60 > 60%% of UrbanPopulation
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Incidence of hip fractures was highest in northern Europe
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S. Europe E. Europe W. Europe N. EuropeIncid
ence
/100
.000
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son
- yea
rs
1. B. Gullberg et al, Osteoporosis Int , 19972. Anonymous, World Urbanization Prospects: The 2007 Revision
61-80% > 81%% of UrbanPopulation
Incidence of hip fractures was higher in Hong Kong and Singapore
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Malaysia Thailand Singapore Hong Kong
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1. E. M. C. Lau et al. Osteoporosis Int (2001) 12: 239-243. 2. Anonymous, World Urbanization Prospects: The 2007 Revision
30-60% > 90% % of UrbanPopulation
L. J. Melton III et al, Osteoporos Int (1999)
ROCHESTER
TASMANIA, AUSTRALIA
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Men Women
Urban
Rural
B. Jonsson et al, Osteoporosis Int (1992)
SWEDEN%
Incidence of fractures was higher in urban than in rural regions within country
TASMANIA, AUSTRALIA
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Rural
AUSTRALIA
K M Sanders, et al, J Epidemiol Community Health, 2002, 56: 466-470
Incidence/100,000
Incidence of fractures was higher in urban regions than in rural regions within a country
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Men Women
Urban
RuralAll fractures
Hip fracture
The urban-rural difference pattern is consistent
The more urbanized, the higher incidence of fracture
Asia is rapidly urbanized at the present and in the future
Burden of fracture will be rapidly increased in Asia in the next decades
K. M. Sanders, et al, J Epidemiol Community Health (2002) 56: 466-470
H. M. Cooley et al, Osteoporos Int (2002) 13: 317-322
AUSTRALIATASMANIA, AUSTRALIA
The urban-rural difference in fracture incidence was more pronounced in those aged 60+ Lifestyle factors
A. J. Sogaard et al, Osteoporos Int 2007) 18: 1063-1072
Fracture
H.E.Maye et al, American Journal of Epidemiology, 2004
BMD
BMD is considered the primary predictor of fracture risk
Rural residents had higher BMD at the forearm than urban residents in Norway
C. Pongchaiyakul et al, BMC Musculoskeletal Disorders, 2005, 6:5
Rural individuals had higher femoral neck BMD than urban individuals in Thailand
C. Pongchaiyakul et al, Osteoporos Int, 2005 16: 1761-8
Lean mass was an independent predictor of urban-rural differences in BMD
(lean mass is an indicator of physical activity)
Implications
Physical activity is probably an important risk factor of fracture in the world.
Physical activity may hold the key to prevention of fractures in Asia.