The prevalence of illicit drug use among adults with chronic low back pain in the United States was much greater than among those without such pain, according to a study that used a self-administered questionnaire.
The survey was conducted by the National Centers for Health Statistics within the National Health and Nutrition Examination Survey. The representative sampling of 5,130 adults between ages 20 and 69 years, during the 2009-2010 cycle of the survey, found that 46.5% of respondents with