Validation of Questionnaire and Diary Measures of Time Outdoors Against an Objective Measure of Personal Ultraviolet Radiation Exposure

A E Cust; G L Fenton; A K Smit; D Espinoza; S Dobbinson; Alison M Brodie; Huong Tran Cam Dang; Michael G Kimlin

doi:10.1111/php.12893

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Validation of Questionnaire and Diary Measures of Time Outdoors Against an Objective Measure of Personal Ultraviolet Radiation Exposure

Journal article

Peer reviewed

Validation of Questionnaire and Diary Measures of Time Outdoors Against an Objective Measure of Personal Ultraviolet Radiation Exposure

A E Cust, G L Fenton, A K Smit, D Espinoza, S Dobbinson, Alison M Brodie, Huong Tran Cam Dang and Michael G Kimlin

Photochemistry and Photobiology, Vol.94(4), pp.815-820

2018

DOI: https://doi.org/10.1111/php.12893

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Abstract

Self-reported sun exposure is commonly measured using questionnaires or diaries, but there are limited data on their validity, particularly for population subgroups. This research aimed to compare self-reported sun exposure, measured as (1) habitual time outdoors over the past month on weekends and weekdays and (2) a 4-day diary measure, against objective measurement of personal ultraviolet radiation using polysulfone film dosimeters. From November 2015 to January 2016, 94 people (22-69 years and living in New South Wales, Australia) completed a questionnaire, 4-day diary and 4-day dosimeter measures of overall, weekday and weekend sun exposure. Spearman correlations and Bland-Altman plots were used to measure agreement. The overall weekly correlation was 0.57 (95% confidence interval [CI] 0.44, 0.68) between standard erythemal doses (SEDs) measured by dosimeter and time spent outdoors measured by questionnaire, 0.74 (95% CI 0.66-0.81) between dosimeter and diary, and 0.59 (95% CI 0.48-0.68) between questionnaire and diary measures. Validity was lower for younger people and weekend sun exposure. There was strong correlation between dosimeter and sun diary measures and moderate correlation between dosimeter and questionnaire measures. Daily measurement over a longer period may be required to accurately capture weeklong sun exposure in all population subgroups. © 2018 American Society for Photobiology.

Details

Title: Validation of Questionnaire and Diary Measures of Time Outdoors Against an Objective Measure of Personal Ultraviolet Radiation Exposure
Authors: A E Cust (Corresponding Author) - University of Sydney
G L Fenton (Author) - University of Sydney
A K Smit (Author) - University of Sydney
D Espinoza (Author) - University of Sydney
S Dobbinson (Author) - Cancer Council Victoria
Alison M Brodie (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Huong Tran Cam Dang (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Michael G Kimlin (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Photochemistry and Photobiology, Vol.94(4), pp.815-820
Publisher: Wiley-Blackwell Publishing Inc.
Date published: 2018
DOI: 10.1111/php.12893
ISSN: 0031-8655
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99450649902621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Biochemistry & Molecular Biology; Biophysics

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