Transcript Results

Global Burden of Disease, Injuries
and Risk Factors Study 2010
-Preliminary Result EstimatesJanet L. Leasher, OD, MPH, FAAO
On behalf of the GBD Vision Loss Expert Group
Regional and Temporal
Data Availability Plot
2010
2009
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Sub−Saharan Africa, West
Sub−Saharan Africa, Southern
Sub−Saharan Africa, East
Sub−Saharan Africa, Central
Oceania
North America, High Income
North Africa/Middle East
Latin America, Tropical
Latin America, Southern
Latin America, Central
Latin America, Andean
Europe, Western
Europe, Eastern
Europe, Central
Caribbean
Australasia
Asia, Southeast
Asia, South
Asia, East
Asia, Central
Asia Pacific, High Income
National
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●
Subnational
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Local
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Bourne R, Price H, Stevens G. Global Burden of Visual Impairment and Blindness.
Arch Ophthalmol. 130:5; May 2012: 645-7.
Data Availability Map
Data sources identified
No data
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3−5
6 or more
Bourne R, Price H, Stevens G. Global Burden of Visual Impairment and Blindness.
Arch Ophthalmol. 130:5; May 2012: 645-7.
GBD Super Regions
Preliminary GBD Expert Group
Estimates of Global Number of
Persons in 2010 with
Blind and Visual Impairment:
33.5 million Blind
(29.6-38.1)
199 million MSVI
(177-231)
Trends
• The prevalence of blindness and MSVI has
decreased in the last 20 years, despite the
relative increase in older adults in the world
population
• However, due to population growth, the
estimates suggest that absolute blind
population has been stable and the
population with MSVI has increased.
GBD Blindness Estimates
Age-standardized and Total Crude Number
Age-stand.ardized
Prev.alence
1.8%
Estimated
Number blind
40,000,000
1.6%
35,000,000
1.4%
30,000,000
1.2%
25,000,000
1.0%
20,000,000
0.8%
15,000,000
0.6%
10,000,000
0.4%
0.2%
5,000,000
0.0%
0
1990
1995
2000
2005
2010
Ratio of Blindness to Moderate and
Severe Visual Impairment
Temporal Trends
Change in Blindness Prevalence from
1990 to 2010 by World Region
Change in Prevalence of Visual
Impairment from 1990-2010
by Global Region
Country Specific Information
Poland
Males
Females
Ratio of female-to-male
prevalence
Ratio of female-to-male prevalence
Summary Statistics
• Prelim. estimates 33.5 million people Blind in
2010 (29.6,38.1), 60.6% of Blind were female
• 199 million (177,231) had Moderate and Severe
Visual Impairment in 2010, 56.8% female
• The highest age-standardized prevalence of
blindness in those ≥ 50 years was in Western SubSaharan Africa at 5.8%
• The highest age-standardized prevalence of MSVI
in those ≥ 50 years was in South Asia at 24.1%
Summary Trends
• The global age-standardized prevalence of
blindness for adults aged 50+ years decreased
from 3.1% (2.7%-3.6%) worldwide in 1990 to
2.0% (1.8%-2.3%) in 2010.
• The global age-standardized prevalence of
MSVI for adults aged 50+ years decreased
from 14.2% (11.2%-16.1%) worldwide in 1990
to 10.8% (9.7%-12.4%) in 2010.
Thank you all