Adults 18 years and older and living in the United States were interviewed by telephone between January 2, 2008, and December 31, 2008. Approximately 1000 individuals were interviewed by telephone every day of the year.6 Survey respondents were asked a series of questions about their health, well-being, household income, education, standard of living, satisfaction with community, work, relationships, and personal health. The interview also included questions about the presence of headache, cold, or influenza (“Were you sick with any of the following yesterday?”). Another question asked respondents for a yes or no answer regarding whether they felt physical pain “ . . . during A LOT OF THE DAY yesterday?” Logistic regression models, with SES variables treated as categorical predictors, were used. To give the reader a sense of the magnitude of differences, we report odds ratios with unadjusted outcomes comparing the lowest category with the highest category. To assess whether the differences in symptoms by SES persisted with appropriate adjustment for potential confounders, another set of logistic regressions was adjusted for 16 self-reported variables, specifically, age, sex, having a partner, child at home, having a full-time job, number of days over last week with at least 30 minutes of exercise, being a smoker, having health insurance, reporting that religion is an important part of daily life, and having ever been told by a physician or nurse that they had depression, a heart attack, asthma, cancer, high blood pressure, high cholesterol, or diabetes.