Participant Demographic Information



A data frame with 4855 rows and 31 variables


A dataset with variables as follows:

  • PTCOGBEG N 11a. Year of onset of cognitive symptoms (best estimate)

  • PTADDX N 11b. Year of Alzheimer's Disease diagnosis

  • PTMCIBEG N NA 11a. Year of onset of Mild Cognitive Impairment symptoms (best estimate)

  • PTDOBMM N NA 2a. Participant Month of Birth

  • PTDOBYY N NA 2b. Participant Year of Birth

  • RID N Participant roster ID

  • SITEID N Site ID

  • VISCODE T Visit code

  • USERDATE S Date record created

  • EXAMDATE D Examination Date

  • PTSOURCE N Information Source

  • PTGENDER N 1. Participant Gender

  • PTDOB D 2. Participant Date of Birth

  • PTHAND N 3. Participant Handedness

  • PTMARRY N 4. Participant Marital Status

  • PTEDUCAT N 5. Participant Education

  • PTWORKHS N 5a. Does the participant have a work history sufficient to exclude mental retardation? <!--Participant Education-->

  • PTWORK T 6a. Primary occupation during most of adult life

  • PTWRECNT T 6b. Most recent occupation

  • PTNOTRT N 7. Participant Retired?

  • PTRTYR D Retirement Date

  • PTHOME N 8. Type of Participant residence

  • PTOTHOME T If Other, specify:

  • PTTLANG N 9. Language to be used for testing the Participant

  • PTPLANG N 10. Participant's Primary Language

  • PTPSPEC T If Other, specify:

  • PTADBEG N 11. Year of onset of Alzheimer's disease symptoms (best estimate)

  • PTETHCAT N 12. Ethnic Category

  • PTRACCAT N 13. Racial Categories

  • USERDATE2 S Date record last updated

  • AGE