Weight loss—there is an app for that! But does it adhere to evidence-informed practices?
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Little is known about how much smartphone apps for weight control adhere to evidence-informed practices. The aim of this study was to review and summarize the content of available weight control apps. Information on content, user rating, and price was extracted from iTunes on September 25, 2009. Apps (n = 204) were coded for adherence to 13 evidence-informed practices for weight control. Latent class analysis was used to identify subgroups of apps based on endorsement practices. Only a small percentage of apps had five or more of the 13 practices (15%). Latent class analysis revealed three main types of apps: diet, physical activity, and weight journals (19%); dietary advice and journals (34%); and weight trackers (46%). User ratings were not associated with apps from these three classes. Many apps have insufficient evidence-informed content. Research is needed that seeks to develop, improve, and evaluate these apps.
KeywordsmHealth Weight loss Smartphones Apps
Support to complete analyses and prepare this article was funded in part by grant K07CA124905 awarded to Dr. Bernard F. Fuemmeler.
- 8.CTIA TWA. (2010). Semi-annual wireless industry survey. http://www.ctia.org/advocacy/research/index.cfm/AID/10316. Accessed 2 Feb 2011.
- 9.Kellogg, D. (2010). Among mobile phone users, Hispanics, Asians are most-likely smartphone owners in the U.S. http://blog.nielsen.com/nielsenwire/?p=25901. Accessed 2 Feb 2011.
- 17.Abroms, L. C. P. N., & Evans, W. D. (2011). Using mobile phones for health promotion. In N. Harrington (Ed.), eHealth Technologies, in press.Google Scholar
- 19.Wing, R. R., Blair, E. H., Bononi, P., Marcus, M. D., Watanabe, R., & Bergman, R. N. (1994). Caloric restriction per se is a significant factor in improvements in glycemic control and insulin sensitivity during weight loss in obese NIDDM patients. Diabetes Care, 17(1), 30–36.PubMedCrossRefGoogle Scholar
- 25.Prevention CfDC. (2009). Healthy weight—it’s not a diet, it’s a lifestyle. http://www.cdc.gov/healthyweight/index.html. Accessed 23 Nov 2009.
- 26.NIH. (2009). Weight loss/dieting. http://health.nih.gov/topic/WeightLossDieting. Accessed 23 Nov 2009.
- 27.FDA. (2009). Making your calories count, use the nutrition facts label for healthy weight management. http://www.fda.gov/food/labelingnutrition/consumerinformation/ucm114022.htm. Accessed 23 Nov 2009.
- 28.USDA. (2009). Weight and obesity. http://fnic.nal.usda.gov/nal_display/index.php?info_center=4&tax_level=1&tax_subject=271. Accessed 23 Nov 2009.
- 30.Collins, L. M., & Lanza, S. T. (2010). Latent class and latent transition analysis: With applications in social, behavioral, and health sciences. New York: Wiley.Google Scholar
- 32.Muthen, L. K., & Muthen, B. O. (1998). Mplus user’s guide. Los Angeles: Muthen & Muthen.Google Scholar
- 35.Winett, R. A., Roodman, A. A., Winett, S. G., Bajzek, W., Rovniak, L. S., & Whiteley, J. A. (1999). The effects of the Eat4Life Internet-based health behavior program on the nutrition and activity practices of high school girls. Journal of Gender, Culture, and Health, 4(3), 239–254.CrossRefGoogle Scholar
- 37.Renjilian, D. A., Perri, M. G., Nezu, A. M., McKelvey, W. F., Shermer, R. L., & Anton, S. D. (2001). Individual versus group therapy for obesity: Effects of matching participants to their treatment preferences. Journal of Consulting and Clinical Psychology, 69(4), 717–721.PubMedCrossRefGoogle Scholar