Evidence map›Paper›PMID 42392590›Full record

ArticleJournal of medical Internet research2026

Assessment of a Digital Health Platform Using Web Analytics and User Experience Measurements: Quantitative Study Based on RE-AIM.

Lior Weinreich, Louisa-Marie von Kontz, Björn Witzel, Olga Hermansson, Hanna Laura Hampe, Susanne Volkmer, Gerd Schulte-Körne, Kristina Moll

Abstract read
In one paragraph

Article in Journal of medical Internet research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Lior WeinreichDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0000-0003-2267-6039
Louisa-Marie von KontzDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0009-0008-6013-6264
Björn WitzelDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0000-0003-2200-6123
Olga HermanssonDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0000-0002-2970-8550
Hanna Laura HampeDepartment of Teaching and Educational Technology, University of Zurich, Zurich, Switzerland.ORCID https://orcid.org/0009-0004-1654-478X
Susanne VolkmerDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0000-0002-9554-0637
Gerd Schulte-KörneDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0000-0002-9960-1572
Kristina MollDepartment of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Faculty of Medicine, Ludwig Maximilian University of Munich University Hospital, Munich, Germany.ORCID https://orcid.org/0000-0003-1463-3928

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn recent years, the field of digital health has grown exponentially, leading to notable benefits, such as easier access to health-related information, but also to content saturation and misinformation. Thus, it is crucial to identify digital health tools that provide meaningful value and assess them in real-world settings.

objectiveThis preregistered study aims to quantitatively assess the Lernstörungen Online-Diagnostik und Intervention (LONDI) platform, a German platform designed for different user groups supporting children with learning disorders. This assessment focused on user groups of mental health professionals (ie, learning therapists and school psychologists) and was grounded in 4 of the 5 reach, effectiveness, adoption, implementation, and maintenance (RE-AIM) framework dimensions: reach, adoption, implementation, and maintenance.

methodsData were collected over a 10-month period between May 1, 2024, and March 1, 2025. The reach dimension was measured via a pop-up questionnaire (n=1324) collecting demographic and professional experience data. The adoption dimension was measured via a second pop-up questionnaire (n=160) measuring user experience (UX) and reuse intention for the platform's help system. The implementation dimension was measured via web analytics (N=37,133) measuring reading time for pages intended for mental health professionals. Moreover, this dimension was also assessed by comparing chatbot engagement rates with industry benchmarks, in the absence of established benchmarks for digital health chatbots. The maintenance dimension was measured via web analytics as well, comparing the use in the previous (n=20,496) and current platform versions (N=37,133) in terms of number and location of users, time spent on the platform, number of actions per visit, and used devices and software.

resultsA total of 21.90% (291/1324) and 10.64% (141/1324) of the users who filled out the first pop-up questionnaire stated that they were learning therapists or school psychologists, respectively, exceeding their percentage in the German population (<0.01%). The second pop-up questionnaire revealed an overall mean UX score of 1.54 (SD 1.14), surpassing the benchmark average, and UX ratings predicted intention to reuse. Time spent on the pages intended for mental health professionals was below the time needed to read them. The 0.18% rate of chatbot engagement was very low compared with industry benchmarks of 35% to 40%. Use changed in the 2 time periods compared, and most strikingly, there was an 81.2% (n=16,637) increase in the number of users.

conclusionsThe study provides evidence of the LONDI platform's positive contribution to public health in terms of the reach, adoption, and maintenance dimensions of the RE-AIM framework. Further research and endeavors are needed to better understand and improve the platform's contribution in terms of the implementation dimension.

Indexed as

InternetLearning DisabilitiesChildDigital HealthFemaleGermanyHumansMaleSurveys and Questionnairesdata sciencedigital healthlearning disordersReach, Effectiveness, Adoption, Implementation, and MaintenanceRE-AIMusability testing

Identifiers

PMID42392590
PMCPMC13376844

What Socratic holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.