Miscellaneous Tables (Standard Errors and P Values) - 6.1 to 6.107

These detailed tables present the standard errors for the totals and prevalence estimates of the number of days and types of substance use, poly-drug use, nicotine dependence, substance dependence by age of first use, source of substances, social context of substance use, and drunk/drugged driving from the 2011 National Survey on Drug Use and Health (NSDUH). Substances examined include illicit drugs, marijuana, cocaine, heroin, hallucinogens, inhalants, and the nonmedical use of prescription-type pain relievers, tranquilizers, stimulants, and sedatives, and alcohol. Standard errors are provided for totals and prevalence estimates of lifetime, past year, and past month use by age group, gender, race/ethnicity, education level, employment status, geographic area, pregnancy status, college enrollment status, and probation/parole status. Comparisons are made between 2011 and 2010.