Chronic pain of various aetiologies in adult patients receiving specialised outpatient pain management at a university pain clinic.
Conditions
Interventions
Group 1: Patients without traumatic events in the Posttraumatic Diagnostic Scale (PDS) Part 1 and without an ICD-10 PTSD diagnosis are assessed during routine pain clinic visits using the SymptomMappe
Sponsors
Medizinische Hochschule Hannover
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: • Adult patients (=18 years) • Consecutive first presentation at the Pain Outpatient Clinic of Hannover Medical School from 8 July 2020 onwards • Chronic pain (duration =3 months) • Complete baseline assessment via SymptomMapper including digital pain drawing, pain quality descriptors, and PDS Part 1 • Written informed consent for the use of routinely collected data for research purposes
Exclusion criteria
Exclusion criteria: • Inability to complete SymptomMapper assessment for cognitive, linguistic, or physical reasons • Withdrawal of consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| (1) Pain area: percentage of body surface area (0–100 %), derived from digital pain drawings in SymptomMapper, aggregated as the union over all per-patient symptom drawings (overlap counted once). Methodologically analogous to Manuel et al. (2023). (2) Widespread Pain Index (WPI): 0–19, derived from SymptomMapper drawings using the ACR regions. (3) Pain quality profile: endorsement of 22 pain quality descriptors (18 sensory and 4 affective descriptors based on the Schmerzbeschreibungsliste / SBL), aggregated as the union over all per-patient symptom drawings (binary per descriptor per patient). Derived measures: number of sensory descriptors (0–18), number of affective descriptors (0–4), endorsement of at least one affective descriptor (binary). Timepoints: baseline first visit and all available follow-up visits in the same clinic until study end. | — |
Secondary
| Measure | Time frame |
|---|---|
| Pain-related: current pain intensity (VAS 0–100), mean pain intensity past 4 weeks (VAS 0–100), maximum pain intensity past 4 weeks (VAS 0–100), acceptable pain intensity (VAS 0–100), Pain Disability Index (PDI, 0–70), sleep impairment (VAS 0–100), Mainz Pain Staging System (MPSS stage sum 4–12 plus the four sub-axes: temporal aspects, spatial aspects, medication-use behaviour, healthcare utilisation). Psychometric: Depression Anxiety Stress Scales 21 (DASS-21, subscales depression, anxiety, stress, each 0–21), Patient Health Questionnaire 15 (PHQ-15 somatisation, 0–30), Well-being Questionnaire (FW-7, 0–35). Trauma-related: Posttraumatic Diagnostic Scale Part 1 (PDS, trauma-type classification), ICD-10 PTSD diagnosis (dichotomous), four-stage trauma-severity classification (none/accidental/interpersonal/PTSD). Sociodemographic and clinical: age, sex, indication or diagnostic group of the pain clinic (where documented). Timepoints: baseline first visit and all available follow-up visits. | — |
Countries
Germany
Contacts
Public ContactMatthias Karst
Medizinische Hochschule Hannover (MHH)
Outcome results
None listed