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Type 2 Diabetes Screening Doesn’t Lower Mortality Rates

After 10 years of follow-up, type 2 diabetes screening is not associated with improved mortality rates. The investigators conducted a systematic literature review using data from Cochrane databases and MEDLINE, and relevant studies from previous task force reviews. Screening for diabetes correlated with no 10-year mortality benefit versus no screening in two trials. Based on 16 trials, there was consistent evidence that treatment of IFG or IGT correlated with delayed progression to diabetes. Most trials of IFG or IGT treatment found no effects on all-cause or cardiovascular mortality, but in one trial, lifestyle modification correlated with reduced risk for both outcomes after 23 years. “Screening for type 2 diabetes could lead to earlier identification and treatment of asymptomatic diabetes, impaired fasting glucose (IFG), or impaired glucose tolerance (IGT), potentially resulting in improved outcomes,” emphasized Shelley Selph, MD, MPH, of Pacific Northwest. — Selph S et al. Ann Intern Med. 2015; doi: doi:10.7326/M14-2221