Table Info

Table 1.

Results from hierarchical regressions demonstrating cognitive performance via individual command and copy digitally-acquired clock drawing test predictors of length of stay and cost of care

Outcome variable	Clock variable	Standardized beta	t	Sig.
Length of stay	Command
	Total time to completion (seconds)	0.24	2.6	0.011
	Ideal digit placement difference (degrees)	0.12	−0.13	0.901
	Hour hand distance from center (millimeters)	−0.03	−0.27	0.787
	Copy
	Total time to completion (seconds)	0.23	2.49	0.014
	Ideal digit placement difference (degrees)	0.17	1.93	0.057
	Hour hand distance from center (millimeters)	0.22	2.57	0.011
Cost of care	Command
	Time to completion (seconds)	0.18	1.94	0.055
	Ideal digit placement difference (degrees)	−0.06	−0.6	0.548
	Hour hand distance from center (millimeters)	−0.02	0.19	0.852
	Copy
	Time to completion (seconds)	0.27	2.78	0.006
	Ideal digit placement difference (degrees)	0.16	1.72	0.088
	Hour hand distance from center (millimeters)	0.18	1.95	0.054

t: t-value; Sig.: significance (P-value)

Declarations

Author contributions

MEW, GJA, PT, and CCP contributed to study concept, MEW, CD, KMH, PT, DJL, and CCP contributed to manuscript preparation. MEW, CD, EF, AD, SA, KMH, RD, DP, CWG, GJA, PT, DJL, and CCP contributed to manuscript revisions. EF, AD, SA, GJA, PT, and CCP contributed to data acquisition. MEW, CD, CWG, PT, DJL, and CCP contribute to statistical analyses. MEW and EF contributed to figure preparation. All authors read and approved the submitted version.

Conflicts of interest

Drs. Dana Penney and Randall Davis are the creators of the digital CDT and previously owned stock in this company, and Dr. David Libon previously owned stock in Digital Cognition Technology.

Ethical approval

This study was institutional review board-approved with Health Insurance Portability and Accountability Act (HIPAA) waiver and honest broker medical record extraction. The study followed Declaration of Helsinki standards and was in accordance with all institutional guidelines and acceptable research standards. This manuscript adheres to the applicable STROBE guidelines.

Consent to participate

The authors have obtained and archived written informed consent from all participants in the study, with proof of consent available upon request.

Consent to publication

Not applicable.

Availability of data and materials

Data are available upon reasonable request to the corresponding author.

Funding

Funding Sources: National Institute of Health R01 NR014181, National Science Foundation NSF 13-543, National Institute of Health R01 AG055337-02. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Copyright

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