Sun Exposure of Outdoor Workers in Mayotte and Reunion Island (EXTRASOL)

The UV index in Mayotte and Reunion is greater than 14, eight months out of twelve. This index decreases linearly over the period from mid-April to mid-August where it can drop to reach an index of 8 in July. The inhabitants are therefore exposed to a maximum intensity of UV radiation according to the World Health Organization (WHO).

The WHO recommends extreme precautions for indices greater than 11 (avoid exposure between 11 a.m. and 3 p.m. (GMT+3 hours), stay in the shade, wear a t-shirt, sunglasses, hat and sunscreen).

Sun exposure is a major risk factor in the development of skin cancer, basal cell cancer, squamous cell cancer and cutaneous melanoma. It is also the cause of premature aging of the skin. Furthermore, it causes ocular complications such as the occurrence of cataracts and this without distinction of skin phenotype.

There is currently no prevention campaign on the risks of sun exposure in Mayotte or Reunion for adults, while many risky behaviors are observed both in the professional field and during leisure activities. In order to better understand risk-taking and choose appropriate awareness-raising tools, it is necessary to identify the knowledge, attitudes and practices (KAP) of these populations in terms of risk of sun exposure and to measure the impact of solar prevention education actions.

Study Overview

• Status: Not yet recruiting
• Conditions: Sun Exposure
• Intervention / Treatment: Other: training on the risks associated with sun exposure

• Study Type: Interventional
• Enrollment (Anticipated): 400
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Mayotte
  • Chirongui, Mayotte
    • Mayotte
    • Sub-Investigator: Jessica DUMEZ, MD, MSc
• Réunion
  • Saint-Pierre, Réunion
    • Reunion
    • Principal Investigator: Antoine BERTOLOTTI, MD,PhD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Live in Mayotte or Reunion island
• > 18 years old
• Work outdoors > 2 hours a day in one of the identified professions
• Belong to the list of targeted companies

Exclusion Criteria:

• Person deprived of liberty by judicial or administrative decision, minor, and person subject to a legal protection measure: guardianship or curators
• Person not agreeing to participate
• No one speaking any of the following languages: English / French / Shimaore / Kibushi / Creole or Comorian
• Person who cannot be followed during the 6 months of the study
• Inability to answer the questionnaire

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: training on the risks associated with sun exposure; power point on the risks associated with sun exposure	Other: training on the risks associated with sun exposure; 15-minute power point and presentation on the risks of sun exposure; Other Names: dosimetry

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Assess the knowledge of photo-exposed workers on the risks associated with exposure to the sun.	knowledge quiz	6 month

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Assess the change in attitudes and practices of photo-exposed workers	attitudes and practices of photo-exposed workers quiz	6 month
fitzpatrick scale : classification of skin types (phototype I to VI)	phototype and knowledge level	6 month
knowledge questionnaire	phototype and knowledge level	6 month
Obtain UV dosimetry data by occupation to confirm risk exposure during working hours.	dosimetry data	6 month

Collaborators and Investigators

• Sponsor: Centre Hospitalier Universitaire de la Réunion

Study record dates

Study Major Dates

• Study Start (Anticipated): April 1, 2022
• Primary Completion (Anticipated): October 1, 2023
• Study Completion (Anticipated): January 1, 2024

Study Registration Dates

• First Submitted: March 14, 2022
• First Submitted That Met QC Criteria: April 19, 2022
• First Posted (Actual): April 20, 2022

Study Record Updates

• Last Update Posted (Actual): April 20, 2022
• Last Update Submitted That Met QC Criteria: April 19, 2022
• Last Verified: April 1, 2022

More Information

Terms related to this study

• Keywords: sun exposure; workers
• Other Study ID Numbers: 2021/CHU/38

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No