Document Detail

Sunscreen use and failures--on site observations on a sun-holiday.
MedLine Citation:
PMID:  23023728     Owner:  NLM     Status:  MEDLINE    
With this observation study we aimed to determine how and when sunscreen was used. 20 sun seekers were observed during a one-week sun holiday in Hurghada, Egypt. The sunscreen application thickness was related to part of body, time outdoors, exposure to ultraviolet radiation and to sunburning. Skin sites with sunscreen were exposed to UVR significantly longer and received significantly higher UVR doses than skin sites without sunscreen. They received an average of 0.62 SED [0.0-9.3 SED] (13% of their MED) before the first sunscreen application of the day. The average sunscreen used was SPF15 and the sunscreen application thickness was in average 0.79 mg cm(-)2 giving an approximated effect of SPF3. For different body parts either the total UVR exposure dose or the UVR exposure time and UVR exposure dose before the first sunscreen application were higher for sunburned than non-sunburned skin sites. In the final model gender, skin type and UVR to skin (adjusted for SPF and sunscreen application thickness) were significant predictors of sunburning. The sunscreen application thickness of 0.79 mg cm(-)2 was less than the 2 mg cm(-2) used for testing SPF. The late start of sunscreen use and improper application thickness was ineffective in preventing sunburn, and therefore could not compensate for the risk of prolonged UVR exposure and high UVR doses. Our results lead us to suspect that the protective effect of sunscreen use against DNA-damage, and thereby skin cancer, is minimal the way sunscreen is used under real sun holiday conditions.
Bibi Petersen; Pameli Datta; Peter Alshede Philipsen; Hans Christian Wulf
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology     Volume:  12     ISSN:  1474-9092     ISO Abbreviation:  Photochem. Photobiol. Sci.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2012-12-13     Completed Date:  2013-05-15     Revised Date:  2014-01-02    
Medline Journal Info:
Nlm Unique ID:  101124451     Medline TA:  Photochem Photobiol Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  190-6     Citation Subset:  IM    
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MeSH Terms
Logistic Models
Middle Aged
Radiation Dosage
Risk Factors
Sex Factors
Skin / drug effects*,  radiation effects
Sun Protection Factor
Sunburn / prevention & control*
Sunscreening Agents / pharmacology*
Ultraviolet Rays
Reg. No./Substance:
0/Sunscreening Agents
Erratum In:
Photochem Photobiol Sci. 2013 Dec;12(12):2202

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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