The Masster
2008-06-30 23:59:12 UTC
Hi;
Over the years I have seen dismal statistics quoted about how people
who successfully lose weight gain it back within one year or 5 years.
I am preparing a web site on this issue. I've been looking for the
exact 1 year and 5 years statistics on the web with little luck. I
see many quoted stats that don't agree with each other, stats with
OLD citations, and stats with no citations.
Can anyone point to statistics about how many people gain what % of
last weight back by 1 year and by 5 years.......AS WELL AS reasonably
current citations for those stats?
Thanks much in advance for that information!
Steve
Int J Obes Relat Metab Disord. 1999 Dec;23(12):1314-9Over the years I have seen dismal statistics quoted about how people
who successfully lose weight gain it back within one year or 5 years.
I am preparing a web site on this issue. I've been looking for the
exact 1 year and 5 years statistics on the web with little luck. I
see many quoted stats that don't agree with each other, stats with
OLD citations, and stats with no citations.
Can anyone point to statistics about how many people gain what % of
last weight back by 1 year and by 5 years.......AS WELL AS reasonably
current citations for those stats?
Thanks much in advance for that information!
Steve
The prevalence of weight loss maintenance among American adults.McGuire MT,
Wing RR, Hill JO.
University of Pittsburgh Medical Center, PA, USA. ***@epi.umn.edu
BACKGROUND: Previous studies suggest that few individuals achieve long-term
weight loss maintenance. Because most of these studies were based on
clinical samples and focused on only one episode of weight loss, these
results may not reflect the actual prevalence of weight loss maintenance in
the general population. DESIGN: A random digit dial telephone survey was
conducted to determine the point prevalence of weight loss maintenance in a
nationally representative sample of adults in the United States. Weight
loss maintainers were defined as individuals who, at the time of the
survey, had maintained a weight loss of > or =10% from their maximum weight
for at least 1 y. The prevalence of weight loss maintenance was first
determined for the total group (n = 500), and then for the subgroup of
individuals who were overweight (body mass index BMI > or =27 kg/m2 at
their maximum (n = 228). RESULTS: Weight loss was quite common in this
sample: 54% of the total sample and 62% of those who were ever overweight
reported that they had lost > or =10% of their maximum weight at least once
in their lifetime, with approximately one-half to two-thirds of these cases
being intentional weight loss. Among those who had achieved an intentional
weight loss of > or =10%, 47-49% had maintained this weight loss for at
least 1 y at the time of the survey; 25-27% had maintained it for 5 y or
more. Fourteen percent of all subjects surveyed and 21% of those with a
history of obesity were currently 10% below their highest weight, had
reduced intentionally, and had maintained this 10% weight loss for at least
1 y. CONCLUSIONS: A large proportion of the American population has lost >
or =10% of their maximum weight and has maintained this weight loss for at
least 1 y. These findings are in sharp contrast to the belief that few
people succeed in long-term weight loss maintenance.
******
Am J Clin Nutr. 1997 Aug;66(2):239-46
A descriptive study of individuals successful at long-term maintenance of
substantial weight loss.Klem ML, Wing RR, McGuire MT, Seagle HM, Hill JO.
University of Pittsburgh School of Medicine, PA 15213, USA.
The National Weight Control Registry (NWCR) is, to the best of our
knowledge, the largest study of individuals successful at long-term
maintenance of weight loss. Despite extensive histories of overweight, the
629 women and 155 men in the registry lost an average of 30 kg and
maintained a required minimum weight loss of 13.6 kg for 5 y. A little over
one-half of the sample lost weight through formal programs; the remainder
lost weight on their own. Both groups reported having used both diet and
exercise to lose weight and nearly 77% of the sample reported that a
triggering event had preceded their successful weight loss. Mean (+/-SD)
current consumption reported by registry members was 5778 +/- 2200 kJ/d,
with 24 +/- 9% of energy from fat, Members also appear to be highly active:
they reported expending approximately 11830 kJ/wk through physical
activity. Surprisingly, 42% of the sample reported that maintaining their
weight loss was less difficult than losing weight. Nearly all registry
members indicated that weight loss led to improvements in their level of
energy, physical mobility, general mood, self-confidence, and physical
health. In summary, the NWCR identified a large sample of individuals who
were highly successful at maintaining weight loss. Future prospective
studies will determine variables that predict continued maintenance of
weight loss.
*****
Annu Rev Nutr. 2001;21:323-41.
Successful weight loss maintenance.Wing RR, Hill JO.
The Miriam Hospital, Brown University, Providence, Rhode Island 02906, USA.
***@Lifespan.org
Obesity is now recognized as a serious chronic disease, but there is
pessimism about how successful treatment can be. A general perception is
that almost no one succeeds in long-term maintenance of weight loss. To
define long-term weight loss success, we need an accepted definition. We
propose defining successful long-term weight loss maintenance as
intentionally losing at least 10% of initial body weight and keeping it off
for at least 1 year. According to this definition, the picture is much more
optimistic, with perhaps greater than 20% of overweight/obese persons able
to achieve success. We found that in the National Weight Control Registry,
successful long-term weight loss maintainers (average weight loss of 30 kg
for an average of 5.5 years) share common behavioral strategies, including
eating a diet low in fat, frequent self-monitoring of body weight and food
intake, and high levels of regular physical activity. Weight loss
maintenance may get easier over time. Once these successful maintainers
have maintained a weight loss for 2-5 years, the chances of longer-term
success greatly increase.
*****
Int J Behav Nutr Phys Act. 2006 Jul 19;3:17
Dietary and physical activity behaviors among adults successful at weight
loss maintenance.Kruger J, Blanck HM, Gillespie C.
Physical Activity and Health Branch, Division of Nutrition and Physical
Activity, Centers for Disease Control and Prevention, Atlanta, Georgia,
USA. ***@cdc.gov
BACKGROUND: There is limited population-based data on behavioral factors
found to be important for successful weight loss maintenance among adults.
METHODS: Data from the 2004 Styles surveys, mailed to U.S. adults aged > or
= 18 years were used to examine the difference in selected weight loss
strategies and attitudes among persons who reported successful weight loss
attempts (lost weight and able to keep it off) and persons who were not
successful (previous attempts to lose weight were unsuccessful or they
could not keep the lost weight off). Behaviors examined included
modification of diet, leisure-time and sports activities, and
self-monitoring, and barriers to weight management. RESULTS: Among adults
who reported losing weight or trying to lose weight, 31.0% had been
successful at both losing weight and maintenance after weight loss.
Successful weight loss status differed by sex, age, and current weight
status. Assessment of reported weight loss strategies, found that
exercising > or = 30 minutes/day and adding physical activity to daily life
were significantly higher among successful versus unsuccessful weight
losers. Individuals who were successful at weight loss and maintenance were
less likely to use over-the-counter diet products than those who were
unsuccessful at weight loss. Significantly more successful versus
unsuccessful weight losers reported that on most days of the week they
planned meals (35.9% vs. 24.9%), tracked calories (17.7% vs. 8.8%), tracked
fat (16.4% vs. 6.6%), and measured food on plate (15.9% vs. 6.7%).
Successful losers were also more likely to weigh themselves daily (20.3%
vs. 11.0%). There were a significantly higher proportion of successful
losers who reported lifting weights (19.0%) versus unsuccessful (10.9%).
The odds of being a successful weight loser were 48%-76% lower for those
reporting exercise weight control barriers were influencing factors (e.g.,
no time, too tired to exercise, no one to exercise with, too hard to
maintain exercise routine) compared to those who reported little or no
influence of exercise; similarly, the odds were 48-64% lower for those who
found certain dietary barriers to be influential (e.g., eat away from home
too often, diet/health food costs too much). CONCLUSION: Self-monitoring
strategies such as weighing oneself, planning meals, tracking fat and
calories, exercising 30 or more minutes daily, and/or adding physical
activity to daily routine may be important in successful weight loss
maintenance. Leisure-time activities such as lifting weights or
cooking/baking for fun are common strategies reported by those who were
successful weight losers.
******
Int J Obes Relat Metab Disord. 1998 Jun;22(6):572-7
McGuire MT, Wing RR, Klem ML, Seagle HM, Hill JO.
University of Pittsburgh Medical Center, PA 15213, USA.
OBJECTIVE: To evaluate whether individuals who lost weight on their own (n
= 447), through organized programs (n = 313) or with liquid formula (n =
133) would differ in the strategies they used to maintain their weight
losses. DESIGN: All subjects were members of the National Weight Control
Registry, had lost > or = 13.6 kg (30 pounds), and kept it off at least one
year (mean weight loss = 30.1+/-14.9 kg and mean duration of maintenance =
5.7+/-6.9 y). RESULTS: Liquid Formula users differed from the other two
groups on many characteristics; they were more likely to be women, older,
heavier, and to have had a medical disorder prior to weight loss. To
maintain their weight loss, the Liquid Formula group reported greater use
of dietary strategies (for example, counting calories, limiting the amount
of calories from fat) and higher dietary restraint. Liquid Formula users
reported that weight maintenance was more difficult than losing weight,
whereas individuals who lost weight on their own reported the reverse. The
On Own group reported expending a higher percentage of calories through
strenuous activities such as running and weight lifting, and reported
weighing themselves more frequently to maintain weight loss. Despite these
behavioral differences, all three groups are maintaining their weight
losses similarly by eating a low calorie diet (5792.3 kJ/d and 25% of daily
calories from fat) and engaging in high levels of physical activity
(11847.3 kJ/week). CONCLUSIONS: Despite using different methods to lose
weight, individuals who lost weight on their own, through an organized
program, or with a liquid formula, use similar behavioral strategies to
maintain their weight loss.
*****
Int J Obes Relat Metab Disord. 2001 Mar;25(3):325-31
Weight-loss maintenance in overweight individuals one to five years
following successful completion of a commercial weight loss program.Lowe
MR, Miller-Kovach K, Phelan S.
Department of Clinical and Health Psychology, MCP Hahnemann University,
Philadelphia, Pennsylvania 19102, USA. ***@drexel.edu
OBJECTIVE: To determine weight loss maintenance among participants in a
commercial weight loss program (Weight Watchers) who had reached their goal
weights 1-5 y previously. DESIGN: A national sample (n=1002) was surveyed
by phone to obtain demographic and weight-related information. An
oversample (n=258) was recruited and weighed in person to develop a
correction factor for self-reported weights in the national sample.
RESULTS: Based on corrected weights, weight regain from 1 to 5 y following
weight loss ranged between 31.5 and 76.5%. At 5 y, 19.4% were within 5 lb
of goal weight, 42.6% maintained a loss of 5% or more, 18.8% maintained a
loss of 10% or more, and 70.3% were below initial weight. CONCLUSIONS:
These results are not directly comparable to those obtained in clinical
settings because of differences in the populations studied. Nonetheless,
they suggest that the long-term prognosis for weight maintenance among
individuals who reach goal weight in at least one commercial program is
better than that suggested by existing research.
*****