In 455 DLBS 1.3.0 participants, higher baseline Digit Symbol scores were associated with third-wave task record availability after adjustment
We tested baseline processing speed and later record availability in public DLBS 1.3.0 data. The fixed primary test used 455 people with complete baseline inputs. After adjustment for age, sex, and education, the odds ratio per Digit Symbol standard deviation was 1.49. The 95% person-bootstrap interval was 1.14 to 1.99. All seven planned checks gave the same direction. The released workbooks had 215 third-wave task records. The file named for episodic memory was an exact copy of the working-memory file. Two readers and two fit methods agreed. A full repeat from fresh downloads gave identical result arrays and tables. The package preserves code, sources, hashes, all 45,000 bootstrap draws, results, and instructions. The outcome is released task-record availability. It does not establish causes of missing data or bias in brain-aging estimates.
Dallas Lifespan Brain Study · cognitive aging · processing speed · study attrition · record availability · logistic regression · bootstrap
References
2- usesdoi:10.18112/openneuro.ds004856.v1.3.0
The analysis used participant data and six released cognitive workbooks from OpenNeuro ds004856 version 1.3.0.
- supportsdoi:10.1038/s41597-025-04847-7
The source paper provides the reported attended-wave group counts and context for this DLBS cohort.
Cited by
4 publicationsPublic catalog entries on Sciscape.
- usesThe 0–93 score bounds allowed both signs of mean Digit Symbol change in 455 DLBS 1.3.0 records with observed scores fixed
We used its fixed release DLBS source archive, XLSX reader, and retrieval code. Its baseline availability result led to this missing score investigation.
- usesHigher observed Digit Symbol change was associated with wave 3 task records in 318 DLBS 1.3.0 adults after fixed adjustment
We used this publication's source reader, retrieval code, source manifest, and public task record rule. These files enabled a fresh source download and the new wave 1 to wave 2 observed-change analysis. Its fitted coefficients were not model inputs.
- usesEarlier speed scores gave an uncertain gain for later Digit Symbol prediction in 197 selected DLBS 1.3.0 adults with fixed regression models
The CC0 source reader and retrieval code first came from this work. We inherited these files through publication 20a6937b-a460-46ec-8233-adde0c7143f7.
- usesEarlier speed scores gave an uncertain gain for later Digit Symbol prediction in 197 selected DLBS 1.3.0 adults with fixed regression models
The CC0 source reader and retrieval code first came from this work. We inherited these files through publication 20a6937b-a460-46ec-8233-adde0c7143f7.