Screening and Interventions for Obesity in Adults: Summary of the Evidence. Appendix Table 1. Screening for Obesity: Eligibility Criteria and Results of Searches

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Key Question	Eligibility Criteria	Number of Articles Meeting Eligibility Criteria and Not in Prior Systematic Review^a
Efficacy of screening	RCT Mass screening	0
Epidemiology of obesity
a. Prevalence	Large U.S. population-based surveys	1
b. Health risks	Prospective cohort studies with absolute rates of health risk reported over ≥10 yrs	14
Efficacy of treatment for weight reduction or intermediate outcomes
a. Counseling and behavioral treatment	- RCT (of fair or good quality) - Outcome: weight loss or BMI reduction; glucose tolerance, blood pressure, lipid disorders - Duration: ≥1 yr - BMI ≥25 kg/m² - 12 month followup	21
b. Medications	- RCT (of fair or good quality) - Outcome: weight loss or BMI reduction; glucose tolerance, blood pressure, lipid disorders - Duration: ≥6 mos - Population: generalizable to typical U.S. primary care population	10
c. Surgery	- RCT (of fair or good quality) - Outcome: weight loss or BMI reduction; glucose tolerance, blood pressure, lipid disorders - Duration: ≥1 year - Cohort - Initial BMI ≥25 kg/m² - Surgical procedure	2
Harms of screening and treatment	Same studies as efficacy of counseling/behavioral and medication interventions For surgery, same studies as efficacy plus multiple cohorts and 1 non-RCT	21 counseling 15 medication 2 surgery
Notes: RCT = randomized controlled trial; BMI = body mass index ^a References 11,28,29,31