DelApp-ICU

2018

An ICU adaptation of DelApp that uses a smartphone-based graded test of arousal and attention. Early discrimination was strong in a small feasibility sample, but it remains an objective component test rather than a stand-alone delirium diagnosis.

Classification

Domain-specific or adjunctive measureCognitive tests designed for delirium Use in intensive care units Monitoring for new onset delirium

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Tool and original sources

This record describes a method rather than a downloadable bedside form. The main source is linked below.

Original paper

Principal sourceTang E, Laverty M, Weir A, Wilson ES, Walsh TS, Allerhand M, et al. Development and feasibility of a smartphone-based test for the objective detection and monitoring of attention impairments in delirium in the ICU. Journal of critical care. 2018;48:104-111. doi: 10.1016/j.jcrc.2018.08.019. PMID: 30176525.
This is the principal published source for DelApp-ICU. It is the main source for the method, its intended use and the evidence available at publication.
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No eligible DTA study identifiedVersion or adaptation

At a glance

Purpose: Domain-specific or adjunctive measure
Population: Adult
Setting: Intensive care
Time: ~3-8 min in the feasibility study
Score or threshold: Score <=6 in the first feasibility study

Format: A smartphone task presents graded stimuli to quantify arousal and sustained attention. The ICU study took about three to eight minutes. The exact task and software should be obtained from the developer or source.

Evidence

Evidence maturityNo eligible DTA study identified

Reported sensitivity and specificity

100%

Sensitivity

96%

Specificity

First-assessment result at score <=6 in a small feasibility sample; not an external validation estimate.

More evidence and citation details

Full name: DelApp-ICU
Related profiles: DelApp, DelBox
Evidence summary: development-only
Reference standard: Research delirium classification
Citation: Tang E, Laverty M, Weir A, Wilson ES, Walsh TS, Allerhand M, Parks S, MacLullich AMJ, Tieges Z Development and feasibility of a smartphone-based test for the objective detection and monitoring of attention impairments in delirium in the ICU Journal of Critical Care. 2018;48:104-111. PMID 30176525

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Version: Smartphone-based research implementation reported in 2018
Information checked: 2026-07-19

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Sources checked 2026-07-29. How profiles are prepared.