Read the brief here. This study examined data from a sample of 12,213 people with IDD who responded to the NCI Adult Consumer Survey in 2012–2013. This sample captured data from 26 states. The purpose of the study was to observe and describe different demographic characteristics among the respondents, and how those characteristics correlate to different outcomes. Gender was one of the demographic categories included in the survey, and all respondents were categorized as male or female.