nytimes.com > health some extra heft may be helpful, new study says by gina kolata published...
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NYTimes.com > Health
Some Extra Heft May Be Helpful, New Study Says
By GINA KOLATA
Published April 20, 2005
26.088
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0
0.5
1
1.5
<19.0 19.0-21.9
22.0-24.9
25.0-28.9
27.0-28.9
29.0-31.9
>32
CHl for trend =3.27
P = 0.001
All Women, 1976-1992 (4726 Deaths)
Body-Mass Index
(Manson et al, 1995)
Ag
e-A
dju
sted
Rel
ativ
e R
isk
23.012
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0
0.5
1
1.5
2
2.5
<19.0 19.0-21.9 22.0-24.9 25.0-26.9 27.0-28.9 29.0-31.9 >32
==3.2 3.4
Women Who Never Smoked and Had Stable Weight, 1980-1992 (531 Deaths)
Mu
ltiv
ari
ate
Rel
ati
ve
Ris
k
Body-Mass Index
Chi for trend = 4.67
p<0.001
(Manson et al., 1995)
23.015
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29.027
Women
Diabetes
Hypertension
Gallstones
Coronary Heart Disease
0
1
2
3
4
5
6
21 22 23 24 25 26 27 28 29 30
Body Mass Index
Rel
ativ
e R
isk
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Obesity in the USA, 1991-98Educational Level
0%
5%
10%
15%
20%
25%
30%
1991 1998
Per
cen
tag
e O
bes
e
College grad: +63%
Some college: +68%
<High school: +46%
High school: +46%
29.022(Mokdad et al. JAMA 1999)
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Obesity in the USA, 1991-98Region
0%2%4%6%8%
10%12%14%16%18%20%
1991 1998
Per
cen
tag
e O
bes
e
New England: + 46%Pacific: + 67%
Midwest: + 36%Mid-Atlantic: +32%
Southeast: + 67%
29.023 (Mokdad, et al. JAMA 1999)
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Controlling the Obesity Epidemic
– Strategies
– Examples
29.034
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Experiences with Other Public Health Problems Related to Human Behavior:
– smoking– not wearing seat belts– drunk driving– poor immunization rates
29.036
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Features of Past Successful Public Health Campaigns:
(WHO)
– Adequate duration and persistence– A slow and staged approach– Legislative action– Education– Advocacy– Shared responsibility by consumers,
communities, food industry, and governments
29.037
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In theory, control is simple:
calories eaten = calories burned
29.035
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21.004
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Low-Fat Weight Loss Trials
-10
-5
0
5
10
0 6 12 21
Length of Follow-up (months)
Wei
ght
Los
s D
iffe
renc
e (k
g)
NDH (1968) (35 vs 30% E)
Boyd (1990) (37 vs 21% E)
Jeffery (1995) (33 vs 26% E)
Black (1994) (40 vs 21% E)
Sheppard (1991) (38 vs 20% E)
Kasim (1993) (36 vs 17% E)
Simon (1997) (34 vs 18% E)
Knopp (1997) (27 vs 22% E)
McManus (2001) (35 vs 20% E)
Bray and Popkin(10% E) (1998)
Bray and Popkin prediction
26.063
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WEIGHT CHANGE
-13
-12 -11
-6
-11
-14-15
-10
-5
0
Baseline 6 12 18
Wei
ght C
hang
e (L
bs.)
HIGH FAT
LOW FAT
Months
29.045
McManus K et al, 2001Int J Obes 25:1503
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Obesity as the Target Weight Control as a Life Skill
- Promotes stigmatization - Inclusive- Ignores much of risk - Consistent with scientific evidence- Focus on treatment - Focus on prevention- Likely to involve expensive - Requires a supportive drugs and surgery environment
29.074
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New England Strategic Plan forWeight Control (NECON 2004)
Schools Health Care Providers Work Sites Media Physical Environment Food Environment Data for Action Economic Analysis
29.075
www.neconinfo.org
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Worksites:
– Encourage physical activity and weight control
– Exercise areas at work, shower facilities
– Financial incentives to walk, cycle, or use public transportation
29.049
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Governments & Community Organizations:
– Urban design to provide safe walking areas, bikeways
– Building codes to encourage use of stairs
– Financial incentives to use bikes and walk
29.048
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Is it Possible To Control the Epidemic?
– Socioeconomic example
– Swedish and Japanese women (examples)
29.052
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School-based Intervention in Singapore(Toh CM, Br Med J, 2004)
Program (1992 to 2000)• nutrition education integrated into curriculum• foods and drinks in schools controlled• provision of plain drinking water• trim and fit awards to schools
Outcome: Change in prevalence of obesity• primary schools: 16.6% to 14.6%• secondary schools: 15.5% to 13.1%
29.125
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Conclusions
• The focus on low fat/high carbohydrate diets has been, at best, a lost opportunity to improve the health of Americans.
• To address the epidemic of obesity engulfing our country, a comprehensive approach will be needed that includes nearly all members and institutions of our society. We should not assume that this will be without costs.
29.091