ucsfatrphy.Rd
UCSF (Colin Studholme) Regional Atrophy Rates
data(ucsfatrphy)
A data frame with 1721 rows and 13 variables
A dataset with variables as follows:
USERDATE S -4 Date record created
RECNO N -4
RID N -4 Participant roster ID
SITEID N -4 Site ID
VISCODE1 T -4
EXAMDATE1 D -4
IMAGEUID1 D -4
VISCODE2 T -4 Translated visit code
EXAMDATE2 D -4
IMAGEUID2 D -4
FLDSTRENG D -4 Field Strength
PCTCHANGE N -4 Summaries of regional atrophy rates between first and last scan (i.e. 12 month interval). There is one percent change for each subject summarizing changes in both temporal lobes together (minus superior temporal gyrus).