R script: Public preferences for policy intervention to protect public health from maritime activities: A 14 European country study

Methods
The SOPHIE survey was a 14-country survey developed as part of the Seas, Oceans and Public Health in Europe (SOPHIE) project funded under the EU’s Horizon 2020 Framework Programme (https://sophie2020.eu/). A total of 14,157 individuals (Mage = 46, age range: 18-99 years, 6898 men and 7269 women) participated in the survey. Country selection was based on several criteria including a desire to have at least one country with a coastline on each of the European sea/ocean basins (i.e. Atlantic, Baltic, Black, Mediterranean, North, Arctic), one landlocked country with no coastline for comparison (i.e. Czech Republic), and countries with key maritime sectors (e.g. Norway). Accordingly, the 14 countries selected were: Belgium, Bulgaria, Czech Republic, France, Germany, Greece, Republic of Ireland, Italy, the Netherlands, Norway, Poland, Portugal, Spain and the United Kingdom (which at the time of the survey was still in the EU).

The survey was administered online in March and April 2019 by international market research company YouGov using established respondent panels. Eligible participants (aged 18 and above and registered as a resident in one of the 14 countries) were invited to complete the survey by YouGov. Samples of approximately 1,000 respondents per country were stratified to be nationally representative on age, gender, and region, as per previous studies in this field (e.g. Gelcich et al., 2014). Survey questions were translated into local languages were appropriate. Where possible, established scales and items from pre-existing surveys where used (e.g. the European Social Survey (ESS, 2018)) to ensure robustness and pre-translation. The data were provided to the research team for analysis already anonymised; and ethical approval for the research was provided by the University of Exeter Medical School Ethics Committee (reference number: Nov18/B/171).

The R script
The script files contain the code used to create the models, tables and figures in the paper entitled "Public preferences for policy intervention to protect public health from maritime activities: A 14 European country study". The data needed for this analysis will be released at a later date.

研究方法
本次SOPHIE调查是欧盟‘地平线2020’框架计划（Horizon 2020 Framework Programme）资助的欧洲海域与公共卫生（Seas, Oceans and Public Health in Europe，简称SOPHIE）项目下属的一项覆盖14国的调研工作，该项目官方网址为https://sophie2020.eu/。本次调研共招募14157名受访者，平均年龄46岁，年龄跨度为18至99岁，其中男性6898人，女性7269人。

本次调研的国家遴选遵循多项标准：确保欧洲各大海域/大洋盆地（大西洋、波罗的海、黑海、地中海、北海、北冰洋）均至少覆盖一个沿海国家；纳入一个无海岸线的内陆国家作为对照（即捷克共和国）；同时纳入拥有核心海洋产业的国家（如挪威）。最终选定的14个国家为：比利时、保加利亚、捷克共和国、法国、德国、希腊、爱尔兰共和国、意大利、荷兰、挪威、波兰、葡萄牙、西班牙以及英国（调研开展时英国仍为欧盟成员国）。

本次调研于2019年3月至4月由国际市场调研公司YouGov依托成熟的受访者样本库在线开展。合格参与者需满足年满18周岁且在上述14国之一常住的注册受访者条件，由YouGov邀请其完成调研。每个国家约1000名受访者的样本按照年龄、性别与地区进行分层，以确保样本具备全国代表性，该抽样方案参考了本领域既往研究（如Gelcich等，2014年）。调研问卷将根据实际需要翻译成对应国家的当地语言，并尽可能采用已有公开调研的成熟量表与问题条目（如欧洲社会调查（European Social Survey，简称ESS，2018）），以保障研究的可靠性与前期翻译的规范性。所有数据已完成匿名化处理后提交至研究团队用于分析；本研究的伦理审查已通过埃克塞特大学医学院伦理委员会批准（批准号：Nov18/B/171）。

R脚本文件
本脚本文件包含了论文《公众对保护公众健康免受海洋活动影响的政策干预偏好：一项覆盖14个欧洲国家的研究》中用于构建模型、制作表格与图表的代码。本分析所需的数据集将于后续发布。