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During January--September 2009, 45.6% of adults aged ≥18 years said they had looked up health information on the Internet in the past 12 months. Overall, the percentage was higher among women (51.0%) than men (39.8%). Among age groups, the percentage was highest among persons aged 25--34 years (55.6%) and lowest among persons aged ≥65 years (23.0%). In each group aged ≤65 years, a higher percentage of women than men said they had looked up health information on the Internet.
SOURCE: National Health Interview Survey, 2009, sample adult core component. Data are based on household interviews of a sample of the civilian noninstitutionalized population. The estimates are being released before final data editing and final weighting to provide earlier public access. The resulting estimates generally are within 0.1 to 0.3 percentage points of the final data files.