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Volume
6: No. 3, July 2009
COMMUNITY CASE STUDY
An Internet-Based Weight Loss Intervention Initiated by a Newspaper for the Public
Respondents |
Week of the Challenge |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
All respondents |
198.3 |
198.6 |
196.9 |
192.7 |
191.4 |
192.4 |
189.3 |
185.9 |
190.2 |
183.2 |
187.1 |
185.5 |
185.4 |
182.2 |
184.5 |
Respondents who recorded data at weeks 1 and 15 |
190.3 |
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184.5 |
Data at weeks 1 and 15, no group participation |
200.2 |
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192.5 |
Data at weeks 1 and 15, group participation |
180.5 |
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176.5 |
Participation by week |
705 |
277 |
423 |
379 |
360 |
330 |
335 |
254 |
240 |
214 |
178 |
161 |
170 |
128 |
154 |
Figure. Mean reported weight of participants in the Herald-Sun
2005 Lose to Win challenge, Durham County, North Carolina. Mean weight is shown
for all participants who reported weight each week. Lines are also shown for the
subset of participants (n = 154) who reported weight on both the first and last
week of the challenge, in total and by whether they participated with a group (n
= 143) or independently (n = 11). Also shown is the week-by-week participation.
A trend toward
weight loss was reported among all subgroups, but standard deviations were wide and overlapped, so no between-group differences can be
determined.
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