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Quality and Adoption of COVID-19 Tracing Apps and Recommendations for Development: Systematic Interdisciplinary Review of European Apps.
Kahnbach, Leonie; Lehr, Dirk; Brandenburger, Jessica; Mallwitz, Tim; Jent, Sophie; Hannibal, Sandy; Funk, Burkhardt; Janneck, Monique.
  • Kahnbach L; Department of Health Psychology and Applied Biological Psychology, Leuphana University of Lüneburg, Lüneburg, Germany.
  • Lehr D; Competencies for Digitally-Enhanced Individualized Practice Project, Leuphana University of Lüneburg, Lüneburg, Germany.
  • Brandenburger J; Department of Health Psychology and Applied Biological Psychology, Leuphana University of Lüneburg, Lüneburg, Germany.
  • Mallwitz T; Institute for Interactive Systems, Technische Hochschule Lübeck, Lübeck, Germany.
  • Jent S; Institute for Interactive Systems, Technische Hochschule Lübeck, Lübeck, Germany.
  • Hannibal S; Department for Electrical Engineering and Computer Science, Technische Hochschule Lübeck, Lübeck, Germany.
  • Funk B; Department of Health Psychology and Applied Biological Psychology, Leuphana University of Lüneburg, Lüneburg, Germany.
  • Janneck M; Institute of Information Systems, Leuphana University of Lüneburg, Lüneburg, Germany.
J Med Internet Res ; 23(6): e27989, 2021 06 02.
Article in English | MEDLINE | ID: covidwho-1273311
Semantic information from SemMedBD (by NLM)
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Free Association
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2. COVID-19 AFFECTS Minimal activity
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COVID-19
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Minimal activity
3. Free Association USES TNFRSF19 wt Allele
Subject
Free Association
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TNFRSF19 wt Allele
4. COVID-19 AFFECTS Minimal activity
Subject
COVID-19
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Minimal activity
ABSTRACT

BACKGROUND:

Simulation study results suggest that COVID-19 contact tracing apps have the potential to achieve pandemic control. Concordantly, high app adoption rates were a stipulated prerequisite for success. Early studies on potential adoption were encouraging. Several factors predicting adoption rates were investigated, especially pertaining to user characteristics. Since then, several countries have released COVID-19 contact tracing apps.

OBJECTIVE:

This study's primary aim is to investigate the quality characteristics of national European COVID-19 contact tracing apps, thereby shifting attention from user to app characteristics. The secondary aim is to investigate associations between app quality and adoption. Finally, app features contributing to higher app quality were identified.

METHODS:

Eligible COVID-19 contact tracing apps were those released by national health authorities of European Union member states, former member states, and countries of the European Free Trade Association, all countries with comparable legal standards concerning personal data protection and app use voluntariness. The Mobile App Rating Scale was used to assess app quality. An interdisciplinary team, consisting of two health and two human-computer interaction scientists, independently conducted Mobile App Rating Scale ratings. To investigate associations between app quality and adoption rates and infection rates, Bayesian linear regression analyses were conducted.

RESULTS:

We discovered 21 national COVID-19 contact tracing apps, all demonstrating high quality overall and high-level functionality, aesthetics, and information quality. However, the average app adoption rate of 22.9% (SD 12.5%) was below the level recommended by simulation studies. Lower levels of engagement-oriented app design were detected, with substantial variations between apps. By regression analyses, the best-case adoption rate was calculated by assuming apps achieve the highest ratings. The mean best-case adoption rates for engagement and overall app quality were 39.5% and 43.6%, respectively. Higher adoption rates were associated with lower cumulative infection rates. Overall, we identified 5 feature categories (symptom assessment and monitoring, regularly updated information, individualization, tracing, and communication) and 14 individual features that contributed to higher app quality. These 14 features were a symptom checker, a symptom diary, statistics on COVID-19, app use, public health instructions and restrictions, information of burden on health care system, assigning personal data, regional updates, control over tracing activity, contact diary, venue check-in, chats, helplines, and app-sharing capacity.

CONCLUSIONS:

European national health authorities have generally released high quality COVID-19 contact tracing apps, with regard to functionality, aesthetics, and information quality. However, the app's engagement-oriented design generally was of lower quality, even though regression analyses results identify engagement as a promising optimization target to increase adoption rates. Associations between higher app adoption and lower infection rates are consistent with simulation study results, albeit acknowledging that app use might be part of a broader set of protective attitudes and behaviors for self and others. Various features were identified that could guide further engagement-enhancing app development.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Contact Tracing / Mobile Applications / COVID-19 Type of study: Diagnostic study / Observational study / Prognostic study / Reviews / Systematic review/Meta Analysis Limits: Humans Country/Region as subject: Europa Language: English Journal: J Med Internet Res Journal subject: Medical Informatics Year: 2021 Document Type: Article Affiliation country: 27989

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Contact Tracing / Mobile Applications / COVID-19 Type of study: Diagnostic study / Observational study / Prognostic study / Reviews / Systematic review/Meta Analysis Limits: Humans Country/Region as subject: Europa Language: English Journal: J Med Internet Res Journal subject: Medical Informatics Year: 2021 Document Type: Article Affiliation country: 27989