Simplified categorization of outdoor activities for male and female U.S. indoor workers - A feasibility study to improve assessment of ultraviolet radiation exposures in epidemiologic study questionnaires

Richard K. Kwok, Martha S. Linet, Gabriel Chodick, Ruth A. Kleinerman, Daryl M. Freedman, Tom Fears, Ruby E. Johnson, Bruce H. Alexander

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Skin cancer studies depend on questionnaires to estimate exposure to ultraviolet light and subsequent risk but are limited by recall bias. We investigate the feasibility of developing a short checklist of categories comprising outdoor activities that can improve sun exposure questionnaires for use in epidemiologic studies. We recruited 124 working and retired U.S. radiologic technologists (52% women). Each subject was instructed to complete a daily activity diary, listing main indoor and outdoor activities between 9:00 A.M. and 5:00 P.M. during a 7 day period. A total of 4697 entries were associated with 1408 h (21.1%) of the total 6944 h spent outdoors. We were able to classify the activities into seven main activity categories: driving, yard work, home-maintenance, walking or performing errands, water activities, other recreational or sports activities and leisure activities or relaxing outside. These activities accounted for more than 94% of time spent outdoors both for working and retired men and women. Our data document the feasibility and guidance for developing a short checklist of outdoor activities for use in epidemiologic questionnaires for estimating sunlight exposures of working and retired indoor workers.

Original languageEnglish (US)
Pages (from-to)45-49
Number of pages5
JournalPhotochemistry and Photobiology
Volume85
Issue number1
DOIs
StatePublished - Jan 2009

Fingerprint Dive into the research topics of 'Simplified categorization of outdoor activities for male and female U.S. indoor workers - A feasibility study to improve assessment of ultraviolet radiation exposures in epidemiologic study questionnaires'. Together they form a unique fingerprint.

Cite this