Abstract
Objective:
To evaluate and describe retention rates and weight loss in clients participating in a commercial weight loss program.
Subjects:
A total of 60 164 men and women ages 18–79 years who enrolled in the Jenny Craig Platinum program between May 2001 and May 2002.
Methods:
Retention rates, mean weight loss and percent weight loss were calculated on a weekly basis for the 52-week period following initial enrollment in the weight loss program. Clients were categorized based on final week of participation in the program (weeks 1–4, weeks 5–13, weeks 14–26, weeks 27–39 and weeks 40–52) and weight loss was calculated at final week. A subgroup of clients was identified based on attendance through 13, 26 and 52 weeks. Mean and percent weight loss was calculated for these subgroups of clients.
Results:
Of the 60 164 men and women who enrolled in the weight loss program, 73% were retained in the program after 4 weeks, 42% at 13 weeks, 22% at 26 weeks and 6.6% at 52 weeks. Clients who dropped out of the program during the first 4 weeks lost 1.1±1.6% (mean±s.d.) of their initial body weight, whereas clients who dropped out between 40 and 52 weeks lost 12.0±7.2%. Clients in the 13-week, 26-week and 52-week cohorts lost 8.3±3.3, 12.6±5.1 and 15.6±7.5% of their initial body weight, respectively.
Conclusion:
Weight loss was greater among clients who were retained in the program longer. The findings from this study suggest that a commercial weight loss program can be an effective weight loss tool for individuals who remain active in the program.
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References
National Institutes of Health. Clinical guidelines on the identification, evaluation, and treatment of overweight and obesity in adults: The evidence report. National Institute of Health: Rockville, MD, 1998, pp 1–228.
Knowler WC, Barrett-Connor E, Fowler SE, Hamman RF, Lachin JM, Walker EA et al. Reduction in the incidence of type 2 diabetes with lifestyle intervention or metformin. N Engl J Med 2002; 346: 393–403.
Kruger J, Galuska DA, Serdula MK, Jones DA . Attempting to lose weight: specific practices among US adults. Am J Prev Med 2004; 26: 402–406.
Serdula MK, Mokdad AH, Williamson DF, Galuska DA, Mendlein JM, Heath GW . Prevalence of attempting weight loss and strategies for controlling weight. JAMA 1999; 282: 1353–1358.
Cleland R, Graybill DC, Hubbard V, Khan LK, Stern JS, Wadden TA et al. Commercial weight loss products and programs: what consumers stand to gain and lose. Washington DC, Federal Trade Commission, Bureau of Consumer Protection 1998.
Hamilton M, Greenway F . Evaluating commercial weight loss programmes: an evolution in outcomes research. Obes Rev 2004; 5: 217–232.
Tsai AG, Wadden TA . Systematic review: an evaluation of major commercial weight loss programs in the United States. Ann Intern Med 2005; 142: 56–66.
US Bureau of Labor Statistics. US Department of Labor. Consumer Expenditure Survey, 2003–2004. US Bureau of Labor Statistics: Washington, D.C., 2005.
Pate RR, Pratt M, Blair SN, Haskell WL, Macera CA, Bouchard C et al. Physical activity and public health: a recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine. JAMA 1995; 273: 402–407.
US Department of Health and Human Services. Physical activity and health: A report of the Surgeon General. US Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion: Atlanta, GA, 1996.
Wing RR, Venditti E, Jakicic JM, Polley BA, Lang W . Lifestyle intervention in overweight individuals with a family history of diabetes. Diabetes Care 1998; 21: 350–359.
Davidson MH, Hauptman J, DiGirolamo M, Foreyt JP, Halsted CH, Heber D et al. Weight control and risk factor reduction in obese subjects treated for 2 years with orlistat: a randomized controlled trial. JAMA 1999; 281: 235–242.
Jakicic JM, Winters C, Lang W, Wing RR . Effects of intermittent exercise and use of home exercise equipment on adherence, weight loss, and fitness in overweight women: a randomized trial. JAMA 1999; 282: 1554–1560.
Jakicic JM, Marcus BH, Gallagher KI, Napolitano M, Lang W . Effect of exercise duration and intensity on weight loss in overweight, sedentary women: a randomized trial. JAMA 2003; 290: 1323–1330.
Wirth A, Krause J . Long-term weight loss with sibutramine: a randomized controlled trial. JAMA 2001; 286: 1331–1339.
Zemel MB, Thompson W, Milstead A, Morris K, Campbell P . Calcium and dairy acceleration of weight and fat loss during energy restriction in obese adults. Obes Res 2004; 12: 582–590.
Volkmar FR, Stunkard AJ, Woolston J, Bailey RA . High attrition rates in commercial weight reduction programs. Arch Intern Med 1981; 141: 426–428.
Honas JJ, Early JL, Frederickson DD, O'Brien MS . Predictors of attrition in a large clinic-based weight-loss program. Obes Res 2003; 11: 888–894.
Teixeira PJ, Going SB, Houtkooper LB, Cussler EC, Metcalfe LL, Blew RM et al. Pretreatment predictors of attrition and successful weight management in women. Int J Obes Relat Metab Disord 2004; 28: 1124–1133.
Lowe MR, Miller-Kovach K, Frye N, Phelan S . An initial evaluation of a commercial weight loss program: short-term effects on weight, eating behavior, and mood. Obes Res 1999; 7: 51–59.
Wing RR, Hamman RF, Bray GA, Delahanty L, Edelstein SL, Hill JO et al. Achieving weight and activity goals among diabetes prevention program lifestyle participants. Obes Res 2004; 12: 1426–1434.
Heshka S, Anderson JW, Atkinson RL, Greenway FL, Hill JO, Phinney SD et al. Weight loss with self-help compared with a structured commercial program: a randomized trial. JAMA 2003; 289: 1792–1798.
Garb JR, Stunkard AJ . Effectiveness of a self-help group in obesity control. A further assessment. Arch Intern Med 1974; 134: 716–720.
Wolfe BL . Long-term maintenance following attainment of goal weight: a preliminary investigation. Addict Behav 1992; 17: 469–477.
Lowe MR, Miller-Kovach K, Phelan S . Weight-loss maintenance in overweight individuals one to five years following successful completion of a commercial weight loss program. Int J Obes Relat Metab Disord 2001; 25: 325–331.
Grodstein F, Levine R, Troy L, Spencer T, Colditz GA, Stampfer MJ . Three-year follow-up of participants in a commercial weight loss program: can you keep it off? Arch Intern Med 1996; 156: 1302–1306.
Acknowledgements
We thank Andy Belden of Fulcrum Analytics for providing the data for the study. We also thank Melba Morrow for her editorial assistance in preparing the manuscript. This study was supported by an unrestricted research grant from Jenny Craig, Incorporated to The Cooper Institute.
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Finley, C., Barlow, C., Greenway, F. et al. Retention rates and weight loss in a commercial weight loss program. Int J Obes 31, 292–298 (2007). https://doi.org/10.1038/sj.ijo.0803395
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DOI: https://doi.org/10.1038/sj.ijo.0803395
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