DOI: 10.5061/dryad.02v6wwpzr
title: SATURN: an inexpensive, freely-available, and fully self-administered cognitive screening test

description: Cognitive screening tests improve detection of dementia in the outpatient
 setting, and are helpful in select inpatient settings. Barriers to
 widespread screening include provider time investment and variability in
 test administration and scoring. We therefore developed Self-Administered
 Tasks Uncovering Risk of Neurodegeneration (SATURN) for inexpensive
 (&lt;$100) computer tablets. This submission to Dryad accompanies an
 abstract for the 2020 American Academy of Neurology conference, and is
 likely to referenced in a later manuscript. This Dryad data submission was
 updated on 31-MAY-2020. The updated version of SATURN
 ("SATURN_0-4-0_ENGLISH.py") revises the score summary screen
 with the latest normative data, and now permits the operator to set their
 state (for orientation questions). The updated Dryad submission also
 includes a better video of normal operation of SATURN, draft foreign
 language versions, and an Excel spreadsheet with de-identified
 participant-level data on demographics, MoCA scores, and SATURN scores. As
 before, we include instructions for installing SATURN on a computer
 tablet, and the IRB-approved protocol for the validation study. The latter
 includes a description of scoring each item within SATURN. Our hope is
 that by sharing the protocol, it will be easier for others to implement
 studies that use SATURN.   An older file, SATURN.rar, is retained
 for completeness, but is outdated as of the 31-MAY-2020 upload.
description: We enrolled English-speaking adults patients, age 50-89 years,
 from Oregon Health and Science University neurology clinics (primarily
 dementia and movement disorders clinics) and their healthy
 partners/caregivers. For patients, we logged the primary diagnosis from
 each clinic visit, and when the patient was seen in our sub-specialty
 dementia clinic, he or she was assigned global and sum-of-boxes scores for
 the clinical dementia rating scale. As part of a typical clinic visit,
 information about the study partner’s activities of daily living is
 provided by descriptions of how he or she assists the patient. To our
 knowledge, no study partners had significant cognitive or functional
 impairment. Caregiver cognition is typical of the general population, and
 later review of partner MoCA scores reassured that this group was
 cognitively intact. They were therefore assigned CDR scores of 0. The
 patient and study partner were tested with SATURN and the Montreal
 Cognitive Assessment (MoCA). We randomized which patients were tested with
 MoCA version 7.1 versus 7.2 (the study partner and patient received
 opposite versions), and the order of testing (MoCA before or after SATURN)
 for each dyad. Afterwards, participants completed a brief survey asking
 age, sex, years of education, self-identified race/ethnicity, and two
 questions comparing the MoCA to SATURN: “Was the tablet easy to use?”
 (“yes” or “no”), and “Which did you prefer, the paper-and-pencil test, or
 the tablet?” (“paper-and-pencil”, “tablet”, or “I felt the same about
 both”). SATURN_DATA_2020_05MAY_30.xlsx contains the results of these
 activities, which were first presented in an electronic/remote poster
 format for the 2020 American Academy of Neurology conference (which would
 have been held in Toronto, Canada, if not for the COVID-19
 pandemic).  
description: Details are provided in the worksheets within the .xlsx
 file.