An observational study in Social Isolation or Loneliness, Anxiety and Anxiety Depression (Mild or Not Persistent), sponsored by Jacobs University Bremen gGmbH. Active, not recruiting at 2 sites in Germany. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-25.
Sponsored by Jacobs University Bremen gGmbH · Observational
The aim of Health Surveillance is to analyze and describe the state of health of students at Constructor University, key influencing factors and individual resources by using mixed-method design.
The aim of Health Surveillance, plus the additional research by means of qualitative interviews is to analyze and describe the state of stress and health of students at Constructor University (CU) by using a mixed-methods approach, as well as explore the association and mechanism between stress and health of students at CU (and employees at HAW Hamburg), key influencing factors and individual resources. In areas where there is a need for action, the Health Surveillance plus this project, the additional qualitative interviews can provide detailed insights and/or in-depth analyses. The Health Surveillance thus provides information on health-related topics and delivers scientifically sound information as a basis for health-promoting discussions in the subsequent follow-up process at various levels (e.g. faculties and departments). In addition, the Health Surveillance plus the additional interviews at CU contributes to comparability with surveys at other German universities through the use of validated and standardized measuring instruments and in-depth qualitative interviews with qualitative content analysis, as well as to add new constructs (i.e., artificial intelligence and digital technology use) as well as democratic competences, as this turned out to be new and important factors. Main hypotheses are
236 studies on the registry are indexed under Social Isolation; 61 are open to participants now.
This study's enrollment of 373 is above the median of 200 across 35 observational studies indexed under Social Isolation.
Browse Social Isolation studies →Jacobs University Bremen gGmbH is the lead sponsor of 15 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
This project contains three phases, the first one is quantitative phase (2025), the second one is qualitative phase (Dec 2025-April 2026) and the third one is again quantitative phase (2026). All Constructor University students and students Germany-wide who wish to take part in the study will be included. In the quantitative phase, Iinclusion criteria are english English or German language for reading and writing skills, internet access and student status. In the qualitative phase, the inclusion criteria are English or Chinese language and between 18-30 years old. Before the start of the survey period and directly before the start of the online survey or interview, all participants will receive all relevant study information and actively declare their consent to participate in the study.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Students at Constructor University Bremen being assessed by means of an online questionnaire in 2025
Other: questionnaire
Students at germany wide being assessed by means of an online questionnaire or qualitative interviews in 2026
Other: questionnaire
Employees at HAW Hamburg wide being assessed by means of an online questionnaire in 2025
Other: questionnaire
Questionnaires and interviews were primarily used as assessment and introspection tools to collect data on study participants' experiences, perceptions, and behaviors. Their purpose was to facilitate measurement and reflection rather than to deliver an intervention. However, it is acknowledged that participation in questionnaires and interviews may have had unintended interventional effects. Specifically, the process of answering questions and reflecting on personal experiences can increase participants' self-awareness, prompt critical reflection, and potentially influence subsequent attitudes or behaviors.
Also known as: assessments, introspection
Loneliness
University of California Los Angelese Loneliness Scale (UCLA-LS) - 3 Items (Schobin, Arriagada \& Gibson-Kunze, 2024), Range 1 (never/nie) - 5 (very often/sehr oft), higher scores mean a worse outcome Loneliness in private and study context - 9 Items (Techniker Krankenkasse, 2024), Range 1 (often) - 4 (never), higher scores mean better outcomes
Time frame: 2025 and 2026 (no matching)
Health literacy
Health literacy - 10 Items (Lenartz, Söllner \& Rudinger, 2014), Range 1 (does not apply/trifft überhaupt nicht zu) - 4 (does fully apply/trifft genau zu), higher scores mean a better outcome
Time frame: 2025 and 2026 (no matching)
Depression and anxiety
Patient Health Questionnaire (PHQ-4) - 4 Items (Kroenke, Spitzer, Williams \& Löwe, 2009), Range 0 (not at all/überhaupt nicht) - 3 (nearly every day/beinahe jeden Tag), higher scores mean worse outcome
Time frame: 2025 and 2026 (no matching)
Subjective health status
Subjective health status- 1 Item (WHO, 1996); Range 1 (very good/sehr gut) - 5 (very poor/schlecht), higher score means worse outcome
Time frame: 2025 and 2026 (no matching)
Student satisfaction
Student satisfaction - 1 Item (Westermann, Heise, Spies \& Trautwein, 1996), Range 0 (not at all satisfied/gar nicht zufrieden) - 100 (completely satisfied/vollkommen zufrieden), higher scores mean better outcome
Time frame: 2025 and 2026 (no matching)
HEI-Stress
Higher Education Institution Stress (HEI-Stress) - 3 Items (Schmidt, Sieverding, Scheiter \& Obergfell, 2013), Range 0 (not at all stressed/gar nicht gestresst) - 100 (very stressed/sehr gestresst), higher scores mean worse outcome
Time frame: 2025 and 2026 (no matching)
Artificial intelligence and digital technology use
Artificial intelligence and digital technology use - 1 Item (adapted from Jerusalem \& Schwarzer, 1999), 1 Item (adapted from Zhang, Tan, Chew, Hew, \& Choo, 2025), 2 Items (adapted from Chen, Y., Chen, G., \& Chen, J., 2026), 3 Items (Norman \& Skinner, 2006)\]
Time frame: 2026
Democratic competences/ Political Effectiveness/ Efficiency
• Democratic competences - 4 Items (Bertelsmann Stiftung, 2025; Die Einsamkeit junger Menschen ist eine Gefahr für die Demokratie)
Time frame: 2026
Belonging; Social Connectedness; Self-Efficacy and Health Behavior
these outcomes were found to be interrelated with loneliness
Time frame: 2025 and 2026 (no matching)
Plan to share: No — due to data security
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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Jacobs University Bremen gGmbH