Health Consequences of Wintering in the French Southern and Antarctic Territories

NCT04768621 | Completed

• 1 other identifier: 2020/CHU/38
• Study Type: interventional
• Target: 232
• Locations: 1 country
• Sites: 1

Brief Summary

Polar stays expose people to extreme climate, isolation and confinement. The combination of these factors induces psychological disorders, sleep disorders, immune and endocrine disturbances, and deficiencies. In the TAAF, (French Southern and Antarctic Lands) two types of population coexist: winter residents, exposed to these stressors over long periods, and country people, who benefit from milder conditions and only make short stays. In this context, the investigators have decided to set up this cohort study with the objective of comparing the state of health of the winterers of the TAAF from 2012 to 2017 with that of the country people of the same period, before their stay, during and the year following their return.

Conditions

Environmental Exposure; Winter Depression; Endocrine System Diseases; Sleep Disorder; Immunologic Activity Alteration

Outcome Measures

Primary Outcomes (1)

• Evaluate incidence health disorders and sociological consequences of wintering of health of winterers (exposed) of TAAF from 2012 to 2017 with that of country people (not exposed) of the same period

  Measurement tool is a questionnaire Prevalence of different pathologies will be described * Sociodemographic data * Psychological and psychiatric evaluation: Psychiatric disorder according to the College of Psychiatry Teacher; Assessment of coping strategy according to the Ways of Coping Checklist, a psychometric assessment tool recognized in the social science * Subjective perception of the state of health * Sleep disorder according to the definition of the College of Teacher of Neurology * Immunological state through the exploration of allergy according to College of Pulmonology Teacher, autoimmune disease according to the French College of Rhumatology Teacher (COFER), and infection by using the classification of infectious disease as presented in the Inserm epidemiological report * Endocrine pathology: dysthyroidism, vitamin D deficiency assessed by its complication as described by COFER * other pathologies presented in International Classification Disease

  between 4 years and 9 years after polar exposure

Study Arms (2)

Winter residents of Southern and Antartic French Lands,

EXPERIMENTAL

people exposed to stressors over long periods including winter

Other: Questionary

Country people going to Southern and Antartic French Lands

ACTIVE COMPARATOR

people going to Southern and Antarctic French Lands who benefit from milder conditions and only make short stays

Other: Questionary

Interventions

Questionary OTHER

Questions about patient health after wintering in Southern and Antarctic French Lands about social and demographics items, psychologic and psychiatric items, sleep disorders, immunological disorders,and endocrinologic disorders, sociological consequences of wintering

Country people going to Southern and Antartic French Lands; Winter residents of Southern and Antartic French Lands,

Eligibility Criteria

• Age: 18 Years - 99 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• for the exposed group are:
• To have carried out one or more wintering in one of the districts of the TAAF, that means a stay of at least six consecutive months including winter;
• Have started their first wintering between 01jan2012 and 31dec2017;
• Know how to read and write French.
• for the non-exposed group are:
• To have taken part in one or more summer campaigns between 01jan2012 and 31dec2017;
• Never have overwintered;
• Not having been refused wintering for health reasons or following psychological tests;
• Knowing how to read and write French.

You may not qualify if:

• Persons under guardianship or guardianship, deceased persons, persons refusing to participate in the study

Sponsors & Collaborators

• Centre Hospitalier Universitaire de la Réunion: lead

Study Sites (1)

CHU de la Réunion

Saint-Denis, 97400, Reunion

Location

MeSH Terms

Conditions

Seasonal Affective Disorder; Endocrine System Diseases; Sleep Wake Disorders

Condition Hierarchy (Ancestors)

Depressive Disorder; Mood Disorders; Mental Disorders; Nervous System Diseases; Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Nicolas BOUSCAREN

  CIC 1410

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: Questionnaire

Study Record Dates

• First Submitted: February 17, 2021
• First Posted: February 24, 2021
• Study Start: April 20, 2021
• Primary Completion: June 19, 2021
• Study Completion: June 19, 2021
• Last Updated: September 21, 2023

Record last verified: 2021-02

Locations

RE (1)