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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06324695
Other study ID # 01GY2105
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date March 2024
Est. completion date March 2025

Study information

Verified date March 2024
Source Universitätsklinikum Hamburg-Eppendorf
Contact Rachel Sommer, Priv-Doz.Dr.
Phone +49 (0) 40 7410 24724
Email r.sommer@uke.de
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This project aims to develop and evaluate an online intervention to prevent and/or reduce self-stigma in German patients with visible chronic skin diseases. Evaluation of the intervention with regard to effectiveness and feasibility will follow an open-label randomized controlled design with 550 patients in total. The results of the program are expected to provide new insights and markedly extended knowledge on the mechanisms of self-stigma in chronic skin conditions. The new online intervention can be used in routine care, aiming for better patient care in practice and, ultimately decreased extent of self-stigma, increased quality of life of patients, and decreased rates of depression, anxiety, and suicide ideation.


Description:

Background: Approximately 10 million people in Germany suffer from a chronic skin disease. Besides physical symptoms, the psychosocial burden for patients is high. A specific problem is stigmatization, which is still very burdensome for people with skin diseases. As a consequence of experienced discrimination, patients tend to accept and incorporate social prejudices, which impair self-esteem and self-efficacy, enhance isolation, and maintain a negatively self-reinforcing cycle. The World Health Organization has explicitly pointed out the importance of reducing stigma. While recent interventions for reducing external stigma in skin diseases have been developed and positively evaluated, evidence-based interventions on self-stigma in skin diseases are still lacking. Objective: This project aims to develop and evaluate the effectiveness of an online intervention for patients with psoriasis, atopic dermatitis, hidradenitis suppurativa, alopecia areata, and vitiligo, to prevent and/or reduce self-stigma. Methods: The evaluation of the online program will follow a randomized controlled design. 550 patients will be recruited through several participating centers across Germany and allocated to the intervention or the control group in a ratio of 1:1, with an equal distribution by diagnosis. Participants in the intervention group will attend a self-guided online program consisting of eight skin-generic modules (on average, 15-20 minutes per module, one module per week), combining educational content and cognitive-behavioral therapy-based exercises (e.g., cognitive restructuring of negative automatic thoughts; cultivating self-compassionate thinking and behavior). Participants in the control group will not attend an alternative program (waiting list) and will be offered the opportunity to attend the program after the follow-up phase. The primary outcome will be a reduction in self-stigma; the secondary outcome will be an improvement in psychosocial health, namely quality of life, depression, anxiety, and suicide ideation. These outcomes will be assessed by standardized patient-reported outcome measures at three time points: baseline (t0), immediately after the intervention (t1), and 6-month follow-up (t2).


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 550
Est. completion date March 2025
Est. primary completion date September 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Clinical diagnosis of psoriasis, atopic dermatitis, hidradenitis suppurativa, alopecia areata, or vitiligo; - Age = 18 years; - Sufficient language skills (German) to follow the instructions and content of the intervention; - Access to a desktop/ laptop with internet connection; - Having signed an Informed Consent Form (ICF). Exclusion Criteria: - Age < 18 years; - Lack of informed consent (ICF); - Patients that were treated in the last 12 months by a psychologist, psychotherapist, or psychiatrist for major depression, schizophrenia or other psychotic disorder, major bipolar disorder, major anxiety or obsessive-compulsive disorder, post-traumatic stress disorder, or major personality disorder.

Study Design


Intervention

Behavioral:
HautKompass
The HautKompass program is a structured self-guided online psychosocial intervention designed to reduce self-stigma in people with visible chronic skin diseases. It combines educational content and practical exercises based on cognitive-behavioral therapy (CBT), namely cognitive restructuring of negative automatic thoughts and cultivating self-compassionate thinking and behavior. The program consists of eight skin-generic modules (on average, 15-20 minutes per module, one module per week).

Locations

Country Name City State
Germany Deutscher Vitiligo-Bund e.V. Adelsdorf
Germany Fachklinik Bad Bentheim, Fachbereich Dermatologie und Allergologie Bad Bentheim
Germany Universitätsklinikum der Ruhr-Universität Bochum (UKRUB), Klinik für Dermatologie, Venerologie und Allergologie Bochum
Germany Deutscher Psoriasis Bund e.V. (DPB) Hamburg
Germany Hautarztpraxis Dr. Daniela Kasche Hamburg
Germany Universitätsklinikum Hamburg-Eppendorf (UKE), Institut für Versorgungsforschung in der Dermatologie und bei Pflegeberufen (IVDP) Hamburg
Germany Universitätsklinikum Schleswig-Holstein, Klinik für Dermatologie, Venerologie und Allergologie, Psoriasis-Zentrum-Kiel Kiel
Germany Alopecia Areata Deutschland e.V. Krefeld
Germany Universitätsmedizin der Johannes-Gutenberg-Universität Mainz, Hautklinik und Poliklinik Mainz
Germany Technische Universität München, Klinik und Poliklinik für Dermatologie und Allergologie am Biederstein München
Germany Universitätsklinikum Münster (UKM), Klinik für Hautkrankheiten - Allgemeine Dermatologie und Venerologie Münster
Germany Dermatologische Spezial- und Schwerpunktpraxis Dr. med. Ralph von Kiedrowski Selters
Germany Privatpraxis Dr. med. Matthias Hoffmann Witten

Sponsors (2)

Lead Sponsor Collaborator
Universitätsklinikum Hamburg-Eppendorf German Federal Ministry of Education and Research

Country where clinical trial is conducted

Germany, 

References & Publications (45)

Ali F, Vyas J, Finlay AY. Counting the Burden: Atopic Dermatitis and Health-related Quality of Life. Acta Derm Venereol. 2020 Jun 9;100(12):adv00161. doi: 10.2340/00015555-3511. — View Citation

Alpsoy E, Polat M, Yavuz IH, Kartal P, Didar Balci D, Karadag AS, Bilgic A, Arca E, Karaman BF, Emre S, Adisen E, Sendur N, Bilgic O, Cordan Yazici A, Yalcin B, Koca R, Gunduz K, Borlu M, Ergun T, Dursun P, Bilgili SG, Surer Adanir A, Gulekon A, Yagcioglu G, Yilmaz E, Kavuzlu U, Senol Y. Internalized Stigma in Pediatric Psoriasis: A Comparative Multicenter Study. Ann Dermatol. 2020 Jun;32(3):181-188. doi: 10.5021/ad.2020.32.3.181. Epub 2020 Apr 24. — View Citation

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Augustin M, Mrowietz U, Luck-Sikorski C, von Kiedrowski R, Schlette S, Radtke MA, John SM, Zink A, Suthakharan N, Sommer R; German ECHT research group. Translating the WHA resolution in a member state: towards a German programme on 'Destigmatization' for individuals with visible chronic skin diseases. J Eur Acad Dermatol Venereol. 2019 Nov;33(11):2202-2208. doi: 10.1111/jdv.15682. Epub 2019 Jul 8. — View Citation

Barak A, Hen L, Boniel-Nissim M, Shapira N. A comprehensive review and a meta-analysis of the effectiveness of Internet-based psychotherapeutic interventions. Journal of Technology in Human Services 2008; 26(2-4): 109-160.

Bessell A, Brough V, Clarke A, Harcourt D, Moss TP, Rumsey N. Evaluation of the effectiveness of Face IT, a computer-based psychosocial intervention for disfigurement-related distress. Psychol Health Med. 2012;17(5):565-77. doi: 10.1080/13548506.2011.647701. Epub 2012 Feb 7. — View Citation

Boss L, Lehr D, Reis D, Vis C, Riper H, Berking M, Ebert DD. Reliability and Validity of Assessing User Satisfaction With Web-Based Health Interventions. J Med Internet Res. 2016 Aug 31;18(8):e234. doi: 10.2196/jmir.5952. — View Citation

Carlbring P, Andersson G, Cuijpers P, Riper H, Hedman-Lagerlof E. Internet-based vs. face-to-face cognitive behavior therapy for psychiatric and somatic disorders: an updated systematic review and meta-analysis. Cogn Behav Ther. 2018 Jan;47(1):1-18. doi: 10.1080/16506073.2017.1401115. Epub 2017 Dec 7. — View Citation

Cash TF, Santos MT, Williams EF. Coping with body-image threats and challenges: validation of the Body Image Coping Strategies Inventory. J Psychosom Res. 2005 Feb;58(2):190-9. doi: 10.1016/j.jpsychores.2004.07.008. — View Citation

Corrigan PW, Larson JE, Rusch N. Self-stigma and the "why try" effect: impact on life goals and evidence-based practices. World Psychiatry. 2009 Jun;8(2):75-81. doi: 10.1002/j.2051-5545.2009.tb00218.x. — View Citation

Craig P, Dieppe P, Macintyre S, Michie S, Nazareth I, Petticrew M. Developing and evaluating complex interventions: the new Medical Research Council guidance. Int J Nurs Stud. 2013 May;50(5):587-92. doi: 10.1016/j.ijnurstu.2012.09.010. Epub 2012 Nov 15. No abstract available. — View Citation

Dalgard FJ, Gieler U, Tomas-Aragones L, Lien L, Poot F, Jemec GBE, Misery L, Szabo C, Linder D, Sampogna F, Evers AWM, Halvorsen JA, Balieva F, Szepietowski J, Romanov D, Marron SE, Altunay IK, Finlay AY, Salek SS, Kupfer J. The psychological burden of skin diseases: a cross-sectional multicenter study among dermatological out-patients in 13 European countries. J Invest Dermatol. 2015 Apr;135(4):984-991. doi: 10.1038/jid.2014.530. Epub 2014 Dec 18. — View Citation

Durso LE, Latner JD. Understanding self-directed stigma: development of the weight bias internalization scale. Obesity (Silver Spring). 2008 Nov;16 Suppl 2:S80-6. doi: 10.1038/oby.2008.448. — View Citation

Finlay AY, Khan GK. Dermatology Life Quality Index (DLQI)--a simple practical measure for routine clinical use. Clin Exp Dermatol. 1994 May;19(3):210-6. doi: 10.1111/j.1365-2230.1994.tb01167.x. — View Citation

Ginsburg IH, Link BG. Feelings of stigmatization in patients with psoriasis. J Am Acad Dermatol. 1989 Jan;20(1):53-63. doi: 10.1016/s0190-9622(89)70007-4. — View Citation

Gonul M, Cemil BC, Ayvaz HH, Cankurtaran E, Ergin C, Gurel MS. Comparison of quality of life in patients with androgenetic alopecia and alopecia areata. An Bras Dermatol. 2018 Sep-Oct;93(5):651-658. doi: 10.1590/abd1806-4841.20186131. — View Citation

Gupta MA, Gupta AK. Evaluation of cutaneous body image dissatisfaction in the dermatology patient. Clin Dermatol. 2013 Jan-Feb;31(1):72-9. doi: 10.1016/j.clindermatol.2011.11.010. — View Citation

Hilbert A, Baldofski S, Zenger M, Lowe B, Kersting A, Braehler E. Weight bias internalization scale: psychometric properties and population norms. PLoS One. 2014 Jan 29;9(1):e86303. doi: 10.1371/journal.pone.0086303. eCollection 2014. — View Citation

Hunt N, McHale S. The psychological impact of alopecia. BMJ. 2005 Oct 22;331(7522):951-3. doi: 10.1136/bmj.331.7522.951. No abstract available. — View Citation

Kage P, Simon JC, Treudler R. Atopic dermatitis and psychosocial comorbidities. J Dtsch Dermatol Ges. 2020 Feb;18(2):93-102. doi: 10.1111/ddg.14029. — View Citation

Kirsten N, Zander N, Augustin M. Prevalence and cutaneous comorbidities of hidradenitis suppurativa in the German working population. Arch Dermatol Res. 2021 Mar;313(2):95-99. doi: 10.1007/s00403-020-02065-2. Epub 2020 Apr 22. — View Citation

Koumaki D, Efthymiou O, Bozi E, Katoulis AC. Perspectives On Perceived Stigma And Self-Stigma In Patients With Hidradenitis Suppurativa. Clin Cosmet Investig Dermatol. 2019 Oct 16;12:785-790. doi: 10.2147/CCID.S180036. eCollection 2019. — View Citation

Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001 Sep;16(9):606-13. doi: 10.1046/j.1525-1497.2001.016009606.x. — View Citation

Lara MA, Patino P, Tiburcio M, Navarrete L. Satisfaction and Acceptability Ratings of a Web-Based Self-help Intervention for Depression: Retrospective Cross-sectional Study From a Resource-Limited Country. JMIR Form Res. 2022 Apr 4;6(4):e29566. doi: 10.2196/29566. — View Citation

Lowe B, Decker O, Muller S, Brahler E, Schellberg D, Herzog W, Herzberg PY. Validation and standardization of the Generalized Anxiety Disorder Screener (GAD-7) in the general population. Med Care. 2008 Mar;46(3):266-74. doi: 10.1097/MLR.0b013e318160d093. — View Citation

Lowe B, Kroenke K, Herzog W, Grafe K. Measuring depression outcome with a brief self-report instrument: sensitivity to change of the Patient Health Questionnaire (PHQ-9). J Affect Disord. 2004 Jul;81(1):61-6. doi: 10.1016/S0165-0327(03)00198-8. — View Citation

Misitzis A, Goldust M, Jafferany M, Lotti T. Psychiatric comorbidities in patients with hidradenitis suppurativa. Dermatol Ther. 2020 Jul;33(4):e13541. doi: 10.1111/dth.13541. Epub 2020 May 22. — View Citation

Ongenae K, Dierckxsens L, Brochez L, van Geel N, Naeyaert JM. Quality of life and stigmatization profile in a cohort of vitiligo patients and effect of the use of camouflage. Dermatology. 2005;210(4):279-85. doi: 10.1159/000084751. — View Citation

Paykel ES, Myers JK, Lindenthal JJ, Tanner J. Suicidal feelings in the general population: a prevalence study. Br J Psychiatry. 1974 May;124(0):460-9. doi: 10.1192/bjp.124.5.460. No abstract available. — View Citation

Radtke MA, Schafer I, Glaeske G, Jacobi A, Augustin M. Prevalence and comorbidities in adults with psoriasis compared to atopic eczema. J Eur Acad Dermatol Venereol. 2017 Jan;31(1):151-157. doi: 10.1111/jdv.13813. Epub 2016 Aug 13. — View Citation

Raes F, Pommier E, Neff KD, Van Gucht D. Construction and factorial validation of a short form of the Self-Compassion Scale. Clin Psychol Psychother. 2011 May-Jun;18(3):250-5. doi: 10.1002/cpp.702. Epub 2010 Jun 8. — View Citation

Rzepecki AK, McLellan BN, Elbuluk N. Beyond Traditional Treatment: The Importance of Psychosocial Therapy in Vitiligo. J Drugs Dermatol. 2018 Jun 1;17(6):688-691. — View Citation

Schmid-Ott G, Kuensebeck HW, Jaeger B, Werfel T, Frahm K, Ruitman J, Kapp A, Lamprecht F. Validity study for the stigmatization experience in atopic dermatitis and psoriatic patients. Acta Derm Venereol. 1999 Nov;79(6):443-7. doi: 10.1080/000155599750009870. — View Citation

Schmid-Ott G, Kunsebeck HW, Jecht E, Shimshoni R, Lazaroff I, Schallmayer S, Calliess IT, Malewski P, Lamprecht F, Gotz A. Stigmatization experience, coping and sense of coherence in vitiligo patients. J Eur Acad Dermatol Venereol. 2007 Apr;21(4):456-61. doi: 10.1111/j.1468-3083.2006.01897.x. — View Citation

Schmidt S, Muhlan H, Power M. The EUROHIS-QOL 8-item index: psychometric results of a cross-cultural field study. Eur J Public Health. 2006 Aug;16(4):420-8. doi: 10.1093/eurpub/cki155. Epub 2005 Sep 1. — View Citation

Skivington K, Matthews L, Simpson SA, Craig P, Baird J, Blazeby JM, Boyd KA, Craig N, French DP, McIntosh E, Petticrew M, Rycroft-Malone J, White M, Moore L. A new framework for developing and evaluating complex interventions: update of Medical Research Council guidance. BMJ. 2021 Sep 30;374:n2061. doi: 10.1136/bmj.n2061. — View Citation

Sommer R, Augustin M, Mrowietz U, Topp J, Schafer I, von Spreckelsen R. [Perception of stigmatization in people with psoriasis-qualitative analysis from the perspective of patients, relatives and healthcare professionals]. Hautarzt. 2019 Jul;70(7):520-526. doi: 10.1007/s00105-019-4411-y. German. — View Citation

Spitzer RL, Kroenke K, Williams JB, Lowe B. A brief measure for assessing generalized anxiety disorder: the GAD-7. Arch Intern Med. 2006 May 22;166(10):1092-7. doi: 10.1001/archinte.166.10.1092. — View Citation

Titeca G, Goudetsidis L, Francq B, Sampogna F, Gieler U, Tomas-Aragones L, Lien L, Jemec GBE, Misery L, Szabo C, Linder D, Evers AWM, Halvorsen JA, Balieva F, Szepietowski J, Romanov D, Marron SE, Altunay IK, Finlay AY, Salek SS, Kupfer J, Dalgard FJ, Poot F. 'The psychosocial burden of alopecia areata and androgenetica': a cross-sectional multicentre study among dermatological out-patients in 13 European countries. J Eur Acad Dermatol Venereol. 2020 Feb;34(2):406-411. doi: 10.1111/jdv.15927. Epub 2019 Nov 12. Erratum In: J Eur Acad Dermatol Venereol. 2020 May;34(5):1119. — View Citation

Topp J, Andrees V, Weinberger NA, Schafer I, Sommer R, Mrowietz U, Luck-Sikorski C, Augustin M. Strategies to reduce stigma related to visible chronic skin diseases: a systematic review. J Eur Acad Dermatol Venereol. 2019 Nov;33(11):2029-2038. doi: 10.1111/jdv.15734. Epub 2019 Aug 5. — View Citation

van Beugen S, Maas J, van Laarhoven AI, Galesloot TE, Rinck M, Becker ES, van de Kerkhof PC, van Middendorp H, Evers AW. Implicit stigmatization-related biases in individuals with skin conditions and their significant others. Health Psychol. 2016 Aug;35(8):861-5. doi: 10.1037/hea0000404. — View Citation

Vossbeck-Elsebusch AN, Waldorf M, Legenbauer T, Bauer A, Cordes M, Vocks S. German version of the Multidimensional Body-Self Relations Questionnaire - Appearance Scales (MBSRQ-AS): confirmatory factor analysis and validation. Body Image. 2014 Jun;11(3):191-200. doi: 10.1016/j.bodyim.2014.02.002. Epub 2014 Mar 28. — View Citation

Wittkowski A, Richards HL, Griffiths CE, Main CJ. The impact of psychological and clinical factors on quality of life in individuals with atopic dermatitis. J Psychosom Res. 2004 Aug;57(2):195-200. doi: 10.1016/S0022-3999(03)00572-5. — View Citation

Wlodarek K, Glowaczewska A, Matusiak L, Szepietowski JC. Psychosocial burden of Hidradenitis Suppurativa patients' partners. J Eur Acad Dermatol Venereol. 2020 Aug;34(8):1822-1827. doi: 10.1111/jdv.16255. Epub 2020 Mar 10. — View Citation

Zander N, Sommer R, Schafer I, Reinert R, Kirsten N, Zyriax BC, Maul JT, Augustin M. Epidemiology and dermatological comorbidity of seborrhoeic dermatitis: population-based study in 161 269 employees. Br J Dermatol. 2019 Oct;181(4):743-748. doi: 10.1111/bjd.17826. Epub 2019 Jul 17. — View Citation

* Note: There are 45 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Other Changes from baseline to post-intervention and follow-up in illness identity Evaluated with the Inclusion of Illness in the Self (IIS) scale. Respondents indicate in a single item the degree to which their illness is integrated into their self-concept. The higher the IIS score, the greater patients felt they internalized their illness. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Other Changes from baseline to post-intervention and follow-up in avoidance and acceptance coping Evaluated with the subscales avoidance (8 items) and positive rational acceptance (11 items) of the Body Image Coping Strategies Inventory (BICSI). The 19 items are answered in a Likert-type response scale ranging from 0 to 3, and an average score is calculated for each subscale, with higher scores indicating more frequent use of the specific coping strategy. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Other Changes from baseline to post-intervention and follow-up in generic body image/ appearance concerns Evaluated with the Appearance Orientation Subscale of the Multidimensional Body-Self Relations Questionnaire (MBSRQ-AO). This subscale includes 2 items, to be answered on a 5-point Likert scale. The average score for the subscale is computed, with higher scores indicating more appearance concerns. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Other Changes from baseline to post-intervention and follow-up in cutaneous body image Evaluated with the Cutaneous Body Image Scale (CBIS), which comprises 7 items, to be rated on a response scale from 0 ("not at all") to 9 ("very markedly"). A composite score is derived from the mean ratings of the seven items, where a high score is indicative of greater satisfaction with cutaneous body image: score < 3 = severe dissatisfaction; 3-6 = moderate dissatisfaction; > 6 = mild to no dissatisfaction. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Other Changes from baseline to post-intervention and follow-up in self-compassion Evaluated with the short version of the Self-Compassion Scale (SCS), which includes 12 items, to be answered in a 5-point response scale ranging from 1 ("Almost never") to 5 ("Almost always"). Mean scores can be computed for six subscales - Self-Kindness, Self-Judgment (reversed scoring), Common Humanity, Isolation (reversed scoring), Mindfulness, and Over-identification (reversed scoring), as well as a total self-compassion score that results from the average of the six subscale mean scores, with higher scores indicating higher levels of self-compassion. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Other Session Feedback Evaluated with an ad hoc questionnaire that comprises 3 questions tapping into whether the session just completed was interesting, easy to understand, and personally helpful. Respondents are asked to answer the questions on a 5-point Likert scale, where higher scores represent greater agreement. At the end of each session of the program
Primary Changes from baseline to post-intervention and follow-up in self-stigma Evaluated with the Weight Bias Internalization Scale (WBIS) - adapted for skin disease. The scale includes 10 items with a Likert-type response scale ranging from 1 to 7 and provides a total sum score ranging from 10 to 70, with higher scores indicating higher internalization of stigma and biases associated with own skin disease. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Secondary Changes from baseline to post-intervention and follow-up in generic quality of life Evaluated with the EUROHIS-QOL 8-item index. The instrument includes 8 items assessing overall QOL, general health, energy, daily life activities, esteem, relationships, finances, and home environment, to be scored on a 5-point Likert scale. A total score is generated, with higher scores indicating better quality of life. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Secondary Changes from baseline to post-intervention and follow-up in skin-generic quality of life Evaluated with the Dermatology Life Quality Index (DLQI), which includes 10 items, to be answered on a 4-point Likert scale ranging from 0 ("not at all"/ "not relevant") to 3 ("very much"). A total sum score ranging from 0 to 30 is computed, with higher scores indicating larger impairments. According to the Hongbo classification, DLQI scores > 10 are considered as large or extremely large impairments on patients' life. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Secondary Changes from baseline to post-intervention and follow-up in depression Evaluated with the nine-item Patient Health Questionnaire (PHQ-9), which is a validated screening measure for diagnosing and monitoring depression. The response scale ranges from 0 ("not at all") to 3 ("nearly every day"); the sum score ranges from 0 to 27 and a cut-off point = 10 has showed maximized sensitivity and specificity to detect major depression. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Secondary Changes from baseline to post-intervention and follow-up in anxiety Evaluated with the General Anxiety Disorder (GAD-7), which is a brief validated instrument to screen for anxiety disorders. It comprises seven items that represent core anxiety symptoms. The response scale ranges from 0 ("not at all") to 3 ("nearly every day"); the 7 items can be summed into a total score ranging from 0 to 21, with scores = 10 indicating high likelihood of clinical anxiety disorders. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Secondary Changes from baseline to post-intervention and follow-up in suicidal ideation Evaluated with Paykel's Suicidal Feelings in the General Population Questionnaire, which is one of the most widely used measures of suicidal ideation in different populations, including medical settings. It comprises 5 questions about life-weariness, death wishes, and suicidal thoughts, plans and attempts, to be answered in a yes/no response scale. A "yes"-response to questions 3 to 5 indicates the presence of suicidal ideation. Baseline (t0), immediately post-intervention (t1), 6-months follow-up (t2)
Secondary Feasibility of the HautKompass online program Measured through general statistics of website utilization (e.g., time spent on each session). Durations of individuals sessions of > 45 minutes are considered not feasible for implementation. continuously tracked during intervention
Secondary Feasibility of the HautKompass online program - dropouts Measured through dropout rate. continuously tracked during intervention
Secondary User satisfaction with the HautKompass online program Evaluated with the Client Satisfaction Questionnaire Adapted to Internet-Based Interventions (CSQ-I), which includes 8 questions on a Likert scale of 1 to 4, with higher scores indicating greater satisfaction. Immediately post-intervention (t1)
Secondary Acceptability of the HautKompass online program Evaluated with an ad hoc questionnaire that comprises 5 questions about the general acceptability of the website. Respondents are asked to answer the questions on a 4-point Likert scale, where higher scores represent higher acceptability. Immediately post-intervention (t1)
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