"Prevalence and trends in obesity among US adults, 1999-2008," by Katherine M. Flegal, Margaret D. Carroll, Cynthia L. Ogden, and Lester R. Curtin, JAMA - Journal of the American Medical Association, 303[3]: 235-41, 20 January 2010.

[Authors' affiliations: Centers for Disease Control and Prevention, Hyattsville, Maryland]

Abstract:"Context: The prevalence of obesity increased in the United States between 1976-1980 and 1988-1994 and again between 1988-1994 and 1999-2000. Objective: To examine trends in obesity from 1999 through 2008 and the current prevalence of obesity and overweight for 2007-2008. Design, Setting, and Participants: Analysis of height and weight measurements from 5555 adult men and women aged 20 years or older obtained in 2007-2008 as part of the National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of the US population. Data from the NHANES obtained in 20072008 were compared with results obtained from 1999 through 2006. Main Outcome Measure: Estimates of the prevalence of overweight and obesity in adults. Overweight was defined as a body mass index (BMI) of 25.0 to 29.9. Obesity was defined as a BMI of 30.0 or higher. Results: In 2007-2008, the age-adjusted prevalence of obesity was 33.8% (95% confidence interval [CI], 31.6%-36.0%) overall, 32.2% (95% CI, 29.5%-35.0%) among men, and 35.5% (95% CI, 33.2%-37.7%) among women. The corresponding prevalence estimates for overweight and obesity combined (BMI = 25) were 68.0% (95% CI, 66.3%-69.8%), 72.3% (95% CI, 70.4%-74.1%), and 64.1% (95% CI, 61.3%-66.9%). Obesity prevalence varied by age group and by racial and ethnic group for both men and women. Over the 10-year period, obesity showed no significant trend among women (adjusted odds ratio [AOR] for 2007-2008 vs 1999-2000, 1.12 [95% CI, 0.89-1.32]). For men, there was a significant linear trend (AOR for 2007-2008 vs 1999-2000, 1.32 [95% CI, 1.12-1.58]); however, the 3 most recent data points did not differ significantly from each other. Conclusions: In 2007-2008, the prevalence of obesity was 32.2% among adult men and 35.5% among adult women. The increases in the prevalence of obesity previously observed do not appear to be continuing at the same rate over the past 10 years, particularly for women and possibly for men."

This 2010 report from JAMA was cited 99 times in current journal articles indexed by Clarivate during July-August 2011. With its latest two-month tally, the report currently registers as the most-cited medicine paper published in the last two years (aside from reviews), a distinction it also held after the previous count for May-June. Prior to the most recent bimonthly count, citations to the paper have accrued as follows:

May-June 2011: 119 citations
March-April 2011: 109  
January-February 2011: 47
November-December 2010: 38
September-October 2010: 29
July-August 2010: 19
May-June 2010: 13
March-April 2010: 5
January-February 2010: 1

Total citations to date: 479

SOURCE: Hot Papers Database (Included with a subscription to Science Watch^®, available from the Research Services Group of Thomson Reuters. The Hot Papers Database contains data on hundreds of highly cited papers published during the last two years. User interface permits searching by author, organization, journal, field, and more. Total citations, as well as citations accrued during successive bimonthly periods, can be assessed and graphed. New Hot Papers updates are produced every two months.