The RFFACW01 data set consists of three working files that were generated by the Epidemiology Section at the Los Alamos National Laboratory (LANL) for mortality studies of workers employed at RFP. Data were obtained in various formats and media from Rocky Flats departments and other agencies. Demographic data were collected from two primary sources of records provided by the personnel department at RFP. Supplemental data were obtained from RFP medical and health physics records. Death information was abstracted from death certificates obtained from various states. External radiation exposure and plutonium bioassay data were provided by the health physics department at RFP. The external radiation data were computerized by the Epidemiology Section at LANL.
The three files in the RFFACW01 data set are segregated by type of data: demographic, external exposure, and plutonium-239 bioassay results. Data pertaining to an individual that appear in one or more files may be linked by the individual pseudo- identifier number assigned to each worker.
The first working file (PERSON) contains demographic information, including race, sex, birth date, limited work history information, and death information, such as cause of death, date of death, and state of death for 9,537 males and females hired between 1951 and 1979, inclusive. The file includes 1,563 females, 7, 973 males, and 1 with unknown sex. Race was determined for 99% of the workers. A roster of Rocky Flats workers was submitted to the Social Security Administration for vital status ascertainment. Information on vital status through December 31, 1983, was obtained in 1987. There are 1,107 deaths identified in this working file. Cause of death information (ICDA8) is not available for 12 deaths.
The second working file (BIOASSAY) contains results of urine bioassay measurements for gross alpha, uranium, enriched uranium, depleted uranium, plutonium-239, and americium- 241 that were made between August 11, 1952, and January 15, 1982. The file contains 209,015 records for 7,761 workers. The data include the date of the sample, type of analysis, activity of each isotope, estimated body burdens for plutonium-239, and estimated body burdens for americium-241.
The third working file (RFEXTRAD) contains external exposure data. There are 83,159 records for 9,388 workers for the years 1951 through 1978. The variables include year of monitoring and annual whole-body doses (in millirems) incurred while working at RFP.