There are numerous different types of alcohol and drug abuse rehabilitation services in Oregon which drug and alcohol addicted persons can avail themselves of. For example, there are alcohol and drug abuse treatment services which may are geared towards an individual with a short background of substance abuse and may benefit from a short term drug rehab center which will call for the person to remain in rehabilitation for 30 days or less. For others there are more intensive and long term drug and alcohol abuse treatment services which insist the individual commit to a stay of 90 days or more, depending on the individual's particular case of drug abuse and other variables such as co-occurring psychological disorders. Drug and alcohol abuse rehab programs in Oregon can be performed on an outpatient basis or an inpatient basis, with inpatient substance abuse rehabilitation programs resulting in substantially superior results due to a greater quality of rehabilitation program.