HEAT – Health Effects of Ambient Temperature: An Ecological Momentary Assessment Study

HEAT – Health Effects of Ambient Temperature: An Ecological Momentary Assessment Study - HEAT

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00037150

Enrollment

Registered

2025-06-23

Start date

2025-06-18

Completion date

Unknown

Last updated

2025-11-24

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

Conditions

F32 F41.1

Interventions

Group 1: Patients diagnosed with somatic illness, determined with the Working Ability Index (WAI): cardiovascular diseases, respiratory diseases, musculoskeletal diseases, neurological diseases Group

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Psychiatric disorder or somatic illness

Exclusion criteria

Exclusion criteria: Acute suicidality or schizophrenia

Design outcomes

Primary

Measure	Time frame
Mental and physical well-being as a function of temperature, assessed using the Patient Health Questionnaire (PHQ-4) for mental well-being and the Somatic Symptom Questionnaire (SSS-8) for physical well-being. Data is collected 4 times a day at randomized intervals on 15 days with temperatures above 25 degrees during the study period. This is used to determine whether temperature has an effect on mental and physical well-being and whether this correlation varies in strength depending on whether there are pre-existing mental and/or physical illnesses.	—

Measure

Time frame

Mental and physical well-being as a function of temperature, assessed using the Patient Health Questionnaire (PHQ-4) for mental well-being and the Somatic Symptom Questionnaire (SSS-8) for physical well-being. Data is collected 4 times a day at randomized intervals on 15 days with temperatures above 25 degrees during the study period. This is used to determine whether temperature has an effect on mental and physical well-being and whether this correlation varies in strength depending on whether there are pre-existing mental and/or physical illnesses.

—

Secondary

Measure	Time frame
Relationships between individual symptoms of mental and physical well-being: analysis at individual item level using network analyses	—

Countries

Germany

Contacts

Public ContactNadja Gebhardt

Klinik für Allgemeine Innere Medizin und Psychosomatik

nadja.gebhardt@med.uni-heidelberg.de01777508516

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026