Climate Change Beliefs, Perceived Risk of Heat Stress and Responses to Heat Health Warnings Among the General Public of Hong Kong: a Mixed-methods Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 429
- 试验地点
- 1
- 主要终点
- Emotional engagement with heat and climate change risk (discrete emotion)
研究概览
简要总结
Background: Local abnormal heat events may be used as proxies for communicating the health impacts of climate change when people physically feel the effects to reduce the psychological distance of climate change and improve public engagement with climate and weather risk. However, there are concerns that this strategy may be more effective for climate believers, and that it may somewhat compromise the scientific precision because it may lead to erroneous beliefs that climate change is merely characterized by temperature rises or extreme heat but ignore other extreme weather events such as flood and extreme cold, and that cold spells are interpreted as evidence of no climate change. None of these potential effects and concerns has been tested.
Aims: This proposed study is aimed to explore patterns of climate beliefs and their influences on perceptions of heat-related risks and responses to heat health warnings in the general public of Hong Kong; (2) Test the preliminary effects of a revised heat health warning (RHHW) that incorporates information about the health impacts of climate change into existing heat health warning on perceived heat-related risk and climate beliefs.
Design and subjects: This will be a mix-methods study comprising in-depth qualitative interviews, a population-based cohort survey and a pilot randomized control trial (RCT). Subjects will be the general Hong Kong Chinese adults aged ≥18 years.
Main outcome measures: Latent class analysis will be conducted to examine patterns of climate beliefs while structural equation modelling to test the relationships among climate beliefs, perceived heat-related risks and behavioural responses to heat warnings. Qualitative data will be analysed using thematic content analysis while the effect of RHHW will be tested using t-test and linear regression models.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Health Services Research
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Participants should own a mobile phone and be able to read Chinese.
排除标准
- •Participants with no mobile phone or cannot understand Chinese will be excluded.
结局指标
主要结局
Emotional engagement with heat and climate change risk (discrete emotion)
时间窗: One week after completion of all messages delivery
Participants will be asked how much they feel fear/helpless/worried/disgust when thinking about health impacts of climate change (on a 7-point Likert scale). Higher scores indicate stronger emotion arousal.
Emotional engagement with heat and climate change risk (emotional valence)
时间窗: One week after completion of all messages delivery
Measure participants' emotional engagement with risk of heat stress and climate change, in specific, participants will be asked to indicate how they feel about the health impacts of climate change (using a slider from -3 to 3). Higher scores indicate more positive emotion.
Short-term effect of risk perception toward heat and climate change risk
时间窗: One week after completion of all messages delivery
Their perceived health risk toward climate change and heat stress will be measured using items derived from our baseline and follow-up surveys (likelihood, severity and perceived worry will be used to gauge participants' risk perception). All measures on a 5-point likert scale with higher scores indicating greater risk perception.
Long-term effect of risk perception toward heat and climate change
时间窗: One month after completion of all messages delivery
Their perceived health risk toward climate change and heat stress will be measured using items derived from our baseline and follow-up surveys (likelihood, severity and perceived worry will be used to gauge participants' risk perception). All measures on a 5-point likert scale with higher scores indicating greater risk perception.
次要结局
- Short-term effect of intention in taking pro-environment actions(One week after completion of all messages delivery)
- Long-term effect of self-efficacy in taking pro-environment actions(One month after completion of all messages delivery)
- Short-term effect of self-efficacy in taking pro-environment actions(One week after completion of all messages delivery)
- Long-term effect of intention in taking pro-environment actions(One month after completion of all messages delivery)
研究者
Qiuyan Liao
Assistant Professor
The University of Hong Kong