Social class, race and ethnicity, and gender all influence the quality of health in the United States. Health problems are more common among people from low-income backgrounds and among people of color. Women are more likely than men to have health problems that are not life threatening.
Although debate continues over whether mental illness is a social construction, many people do suffer mental health problems. The social epidemiology for mental health and illness resembles that for physical health and illness, with social class, race/ethnicity, and gender disparities existing.
The private insurance model in the United States incurs huge administrative costs and results in more than 50 million people lacking health insurance.