Commercial weight loss programs more effective than NHS-based services

Commercial weight loss programmes are more effective and cheaper than primary care based services led by specially trained staff, finds a study published on bmj.com.

Almost a quarter of the population of England are now classified as obese. Good evidence shows that commercial services can be effective, but the effectiveness of obesity management in primary care is still unclear.

So researchers at the University of Birmingham compared the effectiveness of several commercial programmes of 12 weeks' duration with primary care led programmes and a control group.

A total of 740 obese and overweight men and women took part. Follow-up data were available for 658 (89%) at the end of each 12-week programme and 522 (71%) at one year.

The programmes included in the analyses were ; Slimming World; Rosemary Conley; a group-based dietetics programme; general practice one to one counselling, pharmacy one to one counselling; or a choice of any of the six programmes.

A control group was provided with 12 vouchers enabling free entrance to a local leisure (fitness) centre.

All programmes achieved significant weight loss after 12 weeks, with the average weight loss ranging from 4.4 kg (Weight Watchers) to 1.4 kg (general practice provision). The primary care programmes were no better than the control group at 12 weeks.

At one year, statistically significant weight loss occurred in all groups apart from the one to one programmes in general practice and pharmacy settings. However, Weight Watchers was the only programme to achieve significantly greater weight loss than the .

All groups showed some increase in , although the smallest increase was in those allocated to the general practice programme.

Attendance seemed to be an important factor; the highest attendance rate was in Weight Watchers and the lowest for the primary care programmes. The primary care programmes were also the most costly to provide.

"Our findings suggest that a 12 week group based dedicated programme of weight management can result in clinically useful amounts of weight loss that are sustained at one year," say the authors.

They add: "Commercially provided weight management services are more effective and cheaper than based services led by specially trained staff, which are ineffective."

In an accompanying editorial, nutrition experts Helen Truby and Maxine Bonham at Monash University in Australia say: "Lighten Up shows that there is no simple solution to the obesity epidemic."

They believe that the NHS should be mindful of the level of investment needed to develop its own expert workforce to manage complex obesity, and it can gain much information from commercial companies in how to deliver what consumers want.

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Squirrel
not rated yet Nov 04, 2011
12 weeks is insufficient duration for this kind of study--the minimum period should be at least a year. The findings are worthless--why was it published? In comparison, from submission to a journal appearing in press for the typical research paper is rarely less than six months--why not a comparably longer period for its study?