儿童时期对紫外线辐射（UVR）的暴露在角质形成细胞癌和黑色素瘤的发展中起着重要作用。因此，在儿童早期应实施防晒措施。年幼的孩子在实现适当的防晒保护方面在很大程度上依赖成年人的照料。为了开发对儿童有效的光保护措施，了解照料者对UVR暴露的态度和知识是必要的。本研究旨在探讨与夏季假期期间父母和祖父母的防晒行为相关的变量。在5个国家（法国、德国、西班牙、意大利和美国）的代表性样本中，使用基于网络的在线调查进行了一项跨国、横断面研究。调查对象是至少在2021年夏季照料自己的孩子/孙子女至少2周的12岁及以下儿童的父母和祖父母。多重对应分析（MCA）用于无偏地探索所有变量之间可能的关系并识别特定的特征。共有6,190名成年参与者回答了问卷：5,104名父母（平均年龄42.01岁，女性占54.3%）和1,086名祖父母（平均年龄64.21岁，女性占55.5%）。与父母相比，祖父母采取了更谨慎的行为。父母与“无防晒暴露习惯”和“最年幼子女晒伤报告”更为接近。而祖父母则更接近“在上午11点至下午5点之间让孙子女暴露在阳光下”、“不使用遮阳伞”和“不使用太阳镜”。尽管祖父母似乎采取了比父母更谨慎的行为，但在这两组监护人中观察到了许多适当防晒行为的差距。©作者，2023。由牛津大学出版社代表英国皮肤科医师协会发表。

Childhood exposure to ultraviolet radiation (UVR) plays an important role in the development of keratinocyte carcinomas and melanomas. Therefore, sun-protective measures ought to be implemented during early childhood. Young children are largely dependent upon adult care providers' in achieving proper sun protection.To develop effective photoprotection in children, it is necessary to understand caregivers' attitudes and knowledge about UVR exposure. This study aimed to explore the variables associated with sun protective behavior in parents and grandparents during summer vacations.Multinational, cross-sectional study was conducted using a web-based online survey on a representative sample of parents and grandparents of children aged 12 or under, who cared for their children/grandchildren for at least 2 weeks during the summer of 2021, in five countries (France, Germany, Spain, Italy and the United States). Multiple correspondence analysis (MCA) was used to explore in an unbiased way the possible relationships among all the variables and to identify specific profiles.A total of 6,190 adult participants responded to the questionnaire: 5,104 parents (average age 42.01 years (y), 54,3% women) and 1,086 grandparents (average age 64,21y, 55,5% women).Grandparents adopted more cautious behaviors than parents. "Parents" fell in closer proximity to the "unprotected sun exposure habits", and "sunburn reported in youngest child". "Grandparents" fell in proximity to "having exposed the grandchild to the sun between 11am and 5pm", "not using an umbrella" and "not using sunglasses".While grandparents appear to adopt more cautious behaviors than parents, many gaps in proper sun protection behavior were observed in both groups of guardians.© The Author(s) 2023. Published by Oxford University Press on behalf of British Association of Dermatologists.