Klein Buendel Inc, Golden, Colorado 80204, USA.
J Am Acad Dermatol. 2012 Jan;66(1):63-70. doi: 10.1016/j.jaad.2010.11.044.
Adults are advised to wear sunscreen with a sun protection factor (SPF) of 15 or higher, apply it up to 30 minutes before sun exposure, and reapply it after 2 hours to reduce exposure to ultraviolet radiation in sunlight for the prevention of skin cancer.
This study investigated the extent to which adults comply with sunscreen advice.
A survey was conducted with 4837 adult skiers and snowboarders at 28 high-altitude ski areas in western North America in January through April 2001 through 2002. Respondents self-reported use of sunscreen, its SPF, time of first application, and reapplication.
Only 4.4% (95% confidence interval [CI] = ±0.6) of adults were in full compliance with all sunscreen advice. Half (49.8% [95% CI = ±1.4]) complied with SPF 15 or higher advice. Of those wearing sunscreen, 73.2% (95% CI = ±1.8) applied the sunscreen 30 minutes before beginning skiing/snowboarding, but only 20.4% (95% CI = ±2.0) complied with advice to reapply it after 2 hours. Total compliance was lowest during inclement weather, on low-ultraviolet days, by men, and among respondents who believed skin cancer was unimportant and with low sun-sensitive skin. It was positively associated with wearing lip balm and hats with a brim.
The sample was predominantly male and of high socioeconomic status; the results apply most to winter recreation when ultraviolet radiation levels are low, and sunscreen use was assessed by self-report.
Although the recommendation to use SPF 15 or higher sunscreen has reached many adults, the reapplication advice is heeded by few adults and needs to be highlighted in future sun safety promotions.
建议成年人使用防晒系数(SPF)为 15 或更高的防晒霜,在暴露于阳光前 30 分钟涂抹,并在 2 小时后重新涂抹,以减少暴露在阳光中的紫外线辐射,从而预防皮肤癌。
本研究调查了成年人遵守防晒霜建议的程度。
2001 年至 2002 年 1 月至 4 月期间,在北美西部 28 个高海拔滑雪区对 4837 名成年滑雪者和单板滑雪者进行了一项调查。受访者自我报告了防晒霜的使用、其 SPF、首次使用时间和重新涂抹时间。
只有 4.4%(95%置信区间 [CI] = ±0.6)的成年人完全遵守所有防晒霜建议。一半(49.8% [95% CI = ±1.4])遵守 SPF 15 或更高的建议。在使用防晒霜的人群中,73.2%(95% CI = ±1.8)在开始滑雪/单板滑雪前 30 分钟涂抹防晒霜,但只有 20.4%(95% CI = ±2.0)遵守建议在 2 小时后重新涂抹。在恶劣天气、低紫外线日、男性以及认为皮肤癌不重要和皮肤对阳光敏感程度低的受访者中,总遵守率最低。它与佩戴润唇膏和带有帽檐的帽子呈正相关。
样本主要是男性和高社会经济地位;结果主要适用于冬季娱乐活动,此时紫外线水平较低,并且防晒霜使用情况是通过自我报告评估的。
尽管建议使用 SPF 15 或更高的防晒霜已经普及到许多成年人,但很少有成年人注意到重新涂抹防晒霜的建议,这需要在未来的防晒宣传中加以强调。