Data Distribution 2.0
|Distribution 2.0 of the Collaborative Study of the Genetics of Alcoholism
(COGA) contains clinical and available DNA data for _ families. A description of the
study can be found in the documentation file.
- All files are available in SAS 8 format and compressed using
The primary files are:
Distribution file (cogaped_2): contains basic demographic
and family structure information, alcohol diagnosis, summary scores derived from
personality assessments and cell repository IDs. It is available both as a SAS file
and as a text file. The format for the text file is given in the documentation (see
Documentation (in PDF format): contains, in addition to a
description of the study and formats for the text version of the basic distribution file,
information about the coding used in the other files mentioned below. To view this
file, the freely available Adobe Acrobat Reader must be installed on your computer.
Other files (available as SAS files only) are:
SSAGA file: Contains responses to the SSAGA (Semi
Structured Assessment for the Genetics of Alcoholism) interview. This file is documented
at the link 'SSAGA-I with variable names.'
Diagnosis file (dx_ssaga): A database of all diagnoses
derived from the SSAGA-II. A description of the contents is available at the link
'Contents of Diagnosis file'.
Neuropsychological file (neuropsy): Contains summary
scores derived from the neuropsychiatric battery. (See the link 'Contents of
Neuropsychiatric File' for documentation.)