Sorry to re-send this, but my column headings somehow got misaligned. The table needs to be viewed with a regular Courier font. If the headings still come out wrong, they are as follows: location date population [surveyed] [PD] cases prevalence per 1000 > U.S. Survey Results > Prevalence > __Location________ Date_____Population_____Cases___Per 1000_ > | | > | Rochester MN 1955 29,885 56 1.87 | > | Rochester MN 1965 47,797 75 1.57 | > | | > | Baltimore MD 1969 | > | Estimated 2,070,000 1,630 .79 | > | Black | > | Female - - .09 | > | Male - - .31 | > | White - | > | Female - - 1.21 | > | Male - - 1.28 | > | Sample 228 | > | Black - 17 - | > | White - 211 - | > | | > | Copiah Co. MS 1978 23,597 31 1.31 | > | Black 11,666 12 1.03 | > | White 11,931 19 1.59 | > | | > | Manhattan NY 1991 213,302 228 1.07 | > |____________________________________________________________| > > The Copiah MS study * includes * 40% previously undiagnosed.