Department of Medicine, Memorial Sloan-Kettering Cancer Center, Dermatology Service, New York, NY 10022, USA.
Pediatrics. 2012 Feb;129(2):309-17. doi: 10.1542/peds.2011-0104. Epub 2012 Jan 23.
Early childhood UV light radiation (UVR) exposures have been shown to be associated with melanoma development later in life. The objective of this study was to assess sunburn and changes in sunburn and sun behaviors during periadolescence.
A prospective, population-based study was conducted in fifth-grade children (∼10 years of age) from Framingham, Massachusetts. Surveys were administered at baseline (September-October 2004) and again 3 years later (September-October 2007). Surveys were analyzed to assess prevalence of reported sunburn and sun behaviors and to examine changes in response over the follow-up period.
Data were analyzed from 360 participants who had complete information regarding sunburn at both time points. In 2004, ∼53% of the students reported having at least 1 sunburn during the previous summer, and this proportion did not significantly change by 2007 (55%, P = .79), whereas liking a tan and spending time outside to get a tan significantly increased (P < .001). In 2004, 50% of students reported "often or always" use of sunscreen when outside for at least 6 hours in the summer; this proportion dropped to 25% at the follow-up evaluation (P < .001).
With at least 50% of children experiencing sunburns before age 11 and again 3 years later, targeting children in pediatric offices and community settings regarding unprotected UV exposure may be a practical approach. Because periadolescence is a time of volatility with regard to sun behaviors, learning more about children who receive sunburns versus those who avoid them is a critical research task.
已证实,儿童早期紫外线辐射(UVR)暴露与日后发生黑色素瘤有关。本研究旨在评估青春期前儿童的晒伤情况,以及晒伤和日晒行为的变化。
在马萨诸塞州弗雷明汉的五年级儿童(约 10 岁)中进行了一项前瞻性、基于人群的研究。在基线(2004 年 9 月至 10 月)和 3 年后(2007 年 9 月至 10 月)进行了调查。分析调查结果以评估报告的晒伤和日晒行为的流行率,并检查随访期间的变化。
对在两个时间点均有完整晒伤信息的 360 名参与者进行了数据分析。在 2004 年,约 53%的学生报告在去年夏天至少有 1 次晒伤,到 2007 年这一比例没有显著变化(55%,P=.79),而喜欢棕褐色肤色和为了晒成棕褐色而在户外度过时间的比例显著增加(P<.001)。在 2004 年,50%的学生报告在夏季外出至少 6 小时时“经常或总是”使用防晒霜;在随访评估时,这一比例下降至 25%(P<.001)。
至少有 50%的儿童在 11 岁之前经历过晒伤,并且 3 年后再次经历晒伤,因此针对儿科诊所和社区环境中的儿童开展有关无保护紫外线暴露的宣传可能是一种实用的方法。由于青春期前是日晒行为波动的时期,因此了解更多关于接受晒伤和避免晒伤的儿童的信息是一项关键的研究任务。