Unduplicated Headcount in Credit Courses Academic Year 1997-98* Institution Regular Extended** Total Eastern Oregon University 2,133 1,760 3,893 Oregon Institute of Technology 2,906 196 3,102 Oregon State University 15,650 2,145 17,795 Portland State University 18,993 13,999 32,992 Southern Oregon University 6,101 1,721 7,822 University of Oregon 18,833 3,292 22,125 Western Oregon University 4,585 2,050 6,635 Total 69,201 25,163 94,364 * Includes all credit-bearing student enrollment, either in regular campus courses (base enrollment) or through self-supported courses (extended enrollment), summer 1997 through spring 1998. ** The "extended" category includes students enrolled only in extended courses (such as continuing education or remedial courses). Students enrolled in regular courses only or a combination of regular and extended courses are counted in the regular category. Source: OUS Institutional Research Services, 1997-98 reports ERAN-01 and ERAN-05.