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Contagious Itch, Disgust and Empathy in Patients and Medical Staff

Contagious Itch, Disgust and Empathy in Patients and Medical Staff

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04557644
Enrollment
24
Registered
2020-09-21
Start date
2020-09-16
Completion date
2021-10-31
Last updated
2021-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Contagious Itch

Keywords

itch, scabies, ectoparasites, post-scabetic itch, disgust, empathy

Brief summary

This study is to assess the relationship between CI, disgust and empathy in medical staff treating patients with scabies, to differentiate the impact of visual and verbal stimuli contributing to CI and to assess information about CI, disgust and empathy in a family infested with scabies.

Detailed description

Itch is the commonest skin-related symptom, defined as a bodily sensation provoking the urge to scratch. The induction of itch and scratching by mere (audio-) visual stimuli such as pictures of insects on skin or video clips showing individuals scratching themselves, indicates that itch can be perceived in the absence of a pruritogenic somatosensory stimulus. This phenomenon is referred to as contagious itch (CI). CI may play a special role in the content of scabies both for the affected patients as well as the treating staff: It is a very common phenomenon that family members who are not infested by scabies themselves experience itch when watching their infested relatives scratching. The same is very frequently expressed by health care professionals being confronted with scabies patients. Two further important factors may be involved in the context of CI: disgust and empathy. Empathy is defined as a psychological concept that enables individuals to understand and share emotions of others. Disgust is an emotional response of revulsion to potentially contagious and/or harmful objects or subjects. This study is to assess the relationship between CI, disgust and empathy in medical staff treating patients with scabies, to differentiate the impact of visual and verbal stimuli contributing to CI and to assess information about CI, disgust and empathy in a family infested with scabies.

Interventions

OTHER7-items-questionnaires addressing CI, disgust and empathy

7-items-questionnaire including numerical rating scales (NRS) ranging from 0 (no itch/disgust/empathy) to 10 (worst itch/disgust/most empathy imaginable) to rate itch, disgust and empathy they experience when treating the infested families.

OTHERSaarbrucken Personality questionnaire (SPQ) addressing empathy.

Empathy is additionally assessed by the Saarbrucken Personality Questionnaire (SPQ) ,a 16-item tool.

OTHER10-items-questionnaire addressing previous dermatological conditions, intensity of itch

10-items-questionnaire (completed by the hospitalised family) regarding demographic information (gender, age, profession), previous dermatological conditions, intensity of itch a.) on the first day of the hospitalisation, b.) when seeing the skin lesions of the other family members c.) when talking about the scabies/itch with the other family members, d.) when seeing other family members scratching themselves, and questions regarding their intensity of disgust of the scabies and empathy for the other family members (0-10 NRS).

OTHERItchyQol-questionnaire composed of 22 items addressing itch-related symptoms, functions and emotions

ItchyQol-questionnaire to assess the itch-related quality of life impairment. The ItchyQoL is composed of 22 items addressing itch-related symptoms, functions and emotions.

Sponsors

University Hospital, Basel, Switzerland
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

In this study both the staff and the infested family are to complete questionnaires addressing CI, disgust and empathy

Eligibility

Sex/Gender
ALL
Age
7 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* members of families (aged \>7 years) hospitalized in the Department of Dermatology with scabies * staff (physicians, nurses, nurse aids aged \>16 years) involved in the treatment of these families * Infestation of scabies in individual family members confirmed by two leading dermatologists of the University Hospital Basel by dermoscopy and/or skin scrapings.

Exclusion criteria

\-

Design outcomes

Primary

MeasureTime frameDescription
Intensity of emotion (CI, disgust and empathy) in medical staff treating patients with scabiesone point assessment at baselineScore in 7-items-questionnaire including numerical rating scales (NRS) ranging from 0 (no itch/disgust/empathy) to 10 (worst itch/disgust/most empathy imaginable) to rate itch, disgust and empathy they experience when treating the infested families. The questionnaire (see Appendix) contains questions regarding demographic information (gender, age, profession), previous dermatological conditions, intensity of itch a.) before interacting with the patients, b.) when listening to the patients telling about their infestation with scabies, c.) when seeing the skin lesions, d.) when seeing patients scratching themselves, and questions regarding their intensity of disgust of the scabies and empathy for the families (0-10 NRS).
Intensity of emotion (CI, disgust and empathy) in family infested with scabiesone point assessment at baseline (first day of hospitalisation)Score in 10-items-questionnaire addressing intensity of itch a.) on the first day of their hospitalisation, b.) when seeing the skin lesions of the other family members c.) when talking about the scabies/itch with the other family members, d.) when seeing other family members scratching themselves and intensity of disgust of the scabies and intensity of empathy for the other family members (0-10 NRS).
Empathy scored by Saarbrucken Personality Questionnaire (SPQ)one point assessment at baseline (first day of hospitalisation)The Saarbrucken personality questionnaire SPQ is the German version of the Interpersonality Reactivity Index (IRI) used for the measurement of empathy. The tool is a self-report answered on a 5-point Likert scale ranging from Does not describe me well to Describes me very well.

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026