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Validity of self-reported sunscreen use by parents, children, and lifeguards

Glanz, Karen, McCarty, Frances, Nehl, Eric J., O'Riordan, David L., Gies, Peter, Bundy, Lucja, Locke, Adam E., & Hall, Dawn M. (2009) Validity of self-reported sunscreen use by parents, children, and lifeguards. American Journal of Preventive Medicine, 36(1), pp. 63-69.

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Abstract

Background: Verbal self-report is the method most often used to assess sunscreen use, but the data may be confounded by recall error and social desirability. Sunscreen swabbing is a non-invasive procedure to objectively assess the presence of sunscreen on the skin. This study examined the agreement between verbal reports of sunscreen use from survey and diary measures and objectively measured sunscreen use.-----

Methods: Participants were 564 parents, children aged 5–10 years, and lifeguards at 16 swimming pools in four regions of the U.S. Participants completed self-reported measures, including baseline and final surveys, as well as a 4-day diary and objective swabbing measures of sunscreen presence on 2 separate days. Data were collected in 2006 and analyzed in 2006–2007.-----

Results: Levels of sunscreen use were relatively high based on surveys (65.7%); diary data (40.3%); and swabbing measures (59.1%). Agreement between swabbing and diary measures of sunscreen use was fair to good, with κ statistics for children at 0.40, followed by lifeguards at 0.34 and parents at 0.27. Validity coefficients across measures of sunscreen use were higher for lifeguards and parents than for children, and diary measures were higher than surveys. No systematic errors were found across groups or by gender, latitude, study arm, or risk category.-----

Conclusions: These findings are comparable to those in other validation studies, including studies of the validity of dietary assessments. Self-reported estimates of sunscreen use by diaries or surveys appear to be as good as objective measures.

Impact and interest:

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ID Code: 19065
Item Type: Journal Article
Additional URLs:
Keywords: Skin cancer, Sunscreen, Sunscreen use
DOI: 10.1016/j.amepre.2008.09.012
ISSN: 0749-3797
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > PUBLIC HEALTH AND HEALTH SERVICES (111700) > Public Health and Health Services not elsewhere classified (111799)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Public Health & Social Work
Deposited On: 23 Apr 2009 14:36
Last Modified: 29 Feb 2012 23:50

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