Inquiry about SSAGA (Section F: Cannabis) variables in HCP-Y restricted data
Evgenii Shvedovskii
Dear HCP Project Team,
I am a PhD researcher studying executive-function impairments in the context of substance use, and I am evaluating HCP data as a possible next step in my project. A colleague shared this contact email with me.
To decide whether to request access to the restricted HCP-Y dataset, I’d like to confirm the availability of specific SSAGA variables from the Cannabis/Marijuana section (Section F).
I reviewed the HCP-YA data dictionary (.xlsx) and found the following marijuana-related fields:
- SSAGA_Mj_Use
- SSAGA_Mj_Ab_Dep
- SSAGA_Mj_Age_1st_Use
- SSAGA_Mj_Times_Used
However, the SSAGA instrument includes additional items that are particularly relevant for abstinence/recency and intensity. I am especially interested in whether the following Section F items (wording per SSAGA coding) are available under restricted access:
- F2B: “How old were you the last time you used marijuana?”
- F2C: “Did you use marijuana at least 21 times during the past twelve months?”
- F2D: “Did you use marijuana at least once a week for a month or more?”
Question:
Are data for these items (F2B, F2C, F2D) available to investigators through the restricted HCP-Y access process?
For context: I attempted to post this query on the HCP-Users forum, but it did not appear, so I am reaching out by email. Thank you in advance for your guidance.
_____________________
Evgenii Shvedovskii
Doctoral Candidate
Research Training Group “Neuromodulation of Motor and Cognitive Function in Brain Health and Disease” (RTG 2783)
University Clinic for Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy
OLTECH Doctoral Representative (Faculty VI)
Carl von Ossietzky Universität Oldenburg
Rahel-Straus-Straße 10
26133 Oldenburg
+49 (0)441 798-4719 (work)
|
LinkedIn profile ORCID ID https://orcid.org/0000-0002-2834-7589 Google Scholar profile ResearchGate profile ResearcherID: D-7873-2018 |
Elam, Jennifer
Hi Evgenii,
You and your PI need to (in this order) register for an account on BALSA, sign the HCP-YA open access terms there (ConnectomeDB tab, under HCP-YA 2025), apply and be approved for Restricted Access and request the item-level SSAGA data for HCP-YA from me.
Best,
Jenn
________________________________________
Jennifer Elam, Ph.D.
Scientific Outreach, Human Connectome Project
Washington University School of Medicine
el...@wustl.edu
www.humanconnectome.org
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