Heerfordt I M, Philipsen P A, Wulf H C
Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Denmark.
Department of Dermatology, Bispebjerg Hospital, University of Copenhagen, Denmark.
Public Health. 2018 Feb;155:88-90. doi: 10.1016/j.puhe.2017.11.018. Epub 2018 Jan 9.
To prevent skin cancer, the general population is recommended to limit time in the sun, to wear clothes and to seek shade around noon. This study aimed to investigate the number of beachgoers, the duration of sun exposure, and clothing worn during the day on a beach in Copenhagen.
Observational, descriptive study.
On 11 beach days in 2014 and 2015, beachgoers were counted every hour from 8:00 to 20:00. It was noted if they wore clothes or swimwear. To estimate the duration of sun exposure, it was noted how long cars were parked by the beach.
Of the counted beachgoers 46% were present from noon to 15:00. The number of beachgoers peaked at 15:00 on weekend days (Saturdays and Sunday) and at 16:00 on working days (Monday to Friday). Both on weekend days and working days, the percentage of beachgoers wearing clothes was lowest at 13:00 when about 90% wore only swimwear. Cars were parked for 117 min on average. Around noon, the mean time expanded to 142 min. We assume this to reflect the duration of a beach visit.
The results indicate a weak tendency to limit time in the sun and to seek shade when the ultraviolet radiation is strongest in the midday sun. Hopefully information about actual sun behaviour can be used to adjust campaigns.
为预防皮肤癌，建议普通人群减少日照时间，穿着衣物，并在中午前后寻找阴凉处。本研究旨在调查哥本哈根某海滩上的海滩游客数量、日照时长以及白天穿着的衣物情况。
观察性描述性研究。
在2014年和2015年的11个海滩日，从8:00至20:00每小时统计一次海滩游客数量。记录他们穿着的是衣物还是泳衣。为估算日照时长，记录汽车在海滩边停放的时间。
在统计的海滩游客中，46%是在中午至15:00期间出现的。海滩游客数量在周末（周六和周日）的15:00达到峰值，在工作日（周一至周五）的16:00达到峰值。在周末和工作日，13:00时穿着衣物的海滩游客比例最低，此时约90%的人只穿泳衣。汽车平均停放117分钟。中午前后，平均停放时间延长至142分钟。我们认为这反映了海滩游览的时长。
结果表明，在中午阳光中紫外线最强时，人们在减少日照时间和寻找阴凉处方面的倾向较弱。希望有关实际日照行为的信息可用于调整宣传活动。
