The children and sunscreen study: a crossover trial investigating children's sunscreen application thickness and the influence of age and dispenser type

Diaz, Abbey, Neale, Rachel E., Kimlin, Michael G., Jones, Lee and Janda, Monika (2012) The children and sunscreen study: a crossover trial investigating children's sunscreen application thickness and the influence of age and dispenser type. Archives of Dermatology, 148 5: 606-612. doi:10.1001/archdermatol.2011.2586


Author Diaz, Abbey
Neale, Rachel E.
Kimlin, Michael G.
Jones, Lee
Janda, Monika
Title The children and sunscreen study: a crossover trial investigating children's sunscreen application thickness and the influence of age and dispenser type
Journal name Archives of Dermatology   Check publisher's open access policy
ISSN 0003-987X
Publication date 2012-05-01
Year available 2012
Sub-type Article (original research)
DOI 10.1001/archdermatol.2011.2586
Open Access Status DOI
Volume 148
Issue 5
Start page 606
End page 612
Total pages 7
Place of publication Chicago, IL, United States
Publisher American Medical Association
Language eng
Formatted abstract
Objectives: To measure the thickness at which primary schoolchildren apply sunscreen on school day mornings and to compare it with the thickness (2.00 mg/cm2) at which sunscreen is tested during product development, as well as to investigate how application thickness was influenced by age of the child (school grades 1-7) and by dispenser type (500-mL pump, 125-mL squeeze bottle, or 50-mL roll-on).

Design: A crossover quasiexperimental study design comparing 3 sunscreen dispenser types.

Setting: Children aged 5 to 12 years from public primary schools (grades 1-7) in Queensland, Australia.

Participants: Children (n = 87) and their parents randomly recruited from the enrollment lists of 7 primary schools. Each child provided up to 3 observations (n = 258).

Intervention: Children applied sunscreen during 3 consecutive school weeks (Monday through Friday) for the first application of the day using a different dispenser each week.

Main Outcome Measure: Thickness of sunscreen application (in milligrams per square centimeter). The dispensers were weighed before and after use to calculate the weight of sunscreen applied. This was divided by the coverage area of application (in square centimeters), which was calculated by multiplying the children's body surface area by the percentage of the body covered with sunscreen.

Results: Children applied their sunscreen at a median thickness of 0.48 mg/cm2. Children applied significantly more sunscreen when using the pump (0.75 mg/cm2) and the squeeze bottle (0.57 mg/cm2) compared with the roll-on (0.22 mg/cm2) (P < .001 for both).

Conclusions: Regardless of age, primary schoolchildren apply sunscreen at substantially less than 1.00 mg/cm2, similar to what has been observed among adults. Some sunscreen dispensers seem to facilitate thicker application than others.

Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Public Health Publications
 
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