Sunscreen use and duration of sun exposure: a double-blind, randomized trial

Détails

ID Serval
serval:BIB_A9EBD9735EAE
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Sunscreen use and duration of sun exposure: a double-blind, randomized trial
Périodique
Journal of the National Cancer Institute
Auteur(s)
Autier  P., Dore  J. F., Negrier  S., Lienard  D., Panizzon  R., Lejeune  F. J., Guggisberg  D., Eggermont  A. M.
ISSN
0027-8874 (Print)
Statut éditorial
Publié
Date de publication
08/1999
Volume
91
Numéro
15
Pages
1304-9
Notes
Clinical Trial
Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't --- Old month value: Aug 4
Résumé
BACKGROUND: In epidemiologic studies, sunscreen use is associated with increased risk of cutaneous melanoma, basal cell skin cancer, and higher numbers of nevi. It has been proposed that sunscreens may encourage prolonged sun exposure because they delay sunburn occurrence. We examined whether, under habitual conditions of sunscreen use, the sun-protection factor (SPF) had an influence on sun-exposure duration. METHODS: Before the 1997 summer holidays, we randomly assigned 87 French and Swiss participants who were 18-24 years of age to receive an SPF 10 or an SPF 30 sunscreen. Neither medical personnel nor study participants were aware of their sunscreen assignment. Participants were asked to complete daily records of their sun exposure. To avoid influencing the recreational sun-exposure habits of the study participants, no recommendation was made about sun exposure or sun protection. Furthermore, participants were told that the trial end point was the number of pigmented skin lesions before and after the holidays. One subject was lost to follow-up. All statistical tests were two-sided. RESULTS: The SPF 10 (n = 44) and SPF 30 (n = 42) groups had equivalent mean holiday durations (19.4 days versus 20.2 days) and mean quantities of sunscreen used (72.3 g versus 71.6 g). The mean cumulative sun exposures for the two groups were 58.2 hours and 72.6 hours, respectively (P =.011). The mean daily durations of sunbathing were 2.6 and 3.1 hours, respectively (P =.0013), and, for outdoor activities, they were 3.6 and 3.8 hours, respectively (P =.62). There was no difference in sunburn experience between the two groups. CONCLUSIONS: Use of higher SPF sunscreen seems to increase the duration of recreational sun exposure of young white Europeans.
Mots-clé
Adult Double-Blind Method Female France Humans *Life Style Male Melanoma/etiology/*prevention & control Skin Neoplasms/etiology/*prevention & control Sunlight/*adverse effects Sunscreening Agents/*administration & dosage Switzerland Time Factors
Pubmed
Web of science
Open Access
Oui
Création de la notice
25/01/2008 16:54
Dernière modification de la notice
20/08/2019 15:14
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