Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community Emily YY Chan, Po Yi lee, William Goggins & Calvin KY Cheng JC School of Public Health and Primary Care, Faculty of Medicine Chinese University of Hong Kong Institute of Environment, Energy and Sustainability. Chinese University of Hong Kong Collaborating Centre for Oxford University and CUHK for Disaster and Medical Humanitarian Response . 3 rd November 2013 Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
CUHK climate change and health study team Aims: • Produce scientific evidence to advance the global understanding of the health impact of climate change in Asian metropolitans • To enhance community capacity to mitigate the adverse human health impact of climate change Source: 1. UNDP Human Development Report 2006 2. Hong Kong Observatory Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
CUHK climate change and health study team 1. Climate change and 2. Climate change and health modeling behavior (Led by Professor Bill Goggins) (Led by Professor Emily Chan) Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Effect of Temperature Rise HEAT HEAT URBAN HEAT EXHAUSTION EXHAUSTION HEAT STRESS ISLAND HEAT STROKE HEAT STROKE LESS COLD- LESS COLD- LESS COLD DAYS &COLD NIGHTS RELATED DEATHS RELATED DEATHS MALNUTRITION MALNUTRITION DECREASE FOOD HUNGER HUNGER GROWING SEASON SHORTAGE STARVATION STARVATION TEMPERATURE ALLERGIES & ALLERGIES & INCREASE RELEASE RISE AIRWAY DISEASES AIRWAY DISEASES GROWING SEASON POLLENS ETC. VECTOR-BORNE MORE VECTORS MORE HABITAT FOR INFECTIONS FOR VECTORS TRANSMISSION e.g. Malaria, Dengue fever Source: Atlas of Health and Climate. World Health Organization. 2010 Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Study Background : Public Temperature Warning • Climate change: increasing risk of heat-related morbidity and mortality • The Hong Kong Observatory (HKO) introduced “Very Hot Weather Warning” since 2000 • Hot weather warning might help to reduce heat- related mortality for vulnerable groups in Hong Kong Source: 1. Bassil KL, Cole DC. Effectiveness of public health interventions in reducing morbidity and mortality during heat episodes: a structured review. Int. J. Environ. Res. Public Health. 2010;7(3):991–1001 2. IPCC - Intergovernmental Panel on Climate Change. Available at: http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm. Accessed October 30, 2013. 3. Cold and Very Hot Weather Warnings. Available at: http://www.weather.gov.hk/wservice/warning/coldhot.htm. Accessed September 23, 2013. 4. Chan EYY, Goggins WB, Kim JJ, Griffiths SM. A study of intracity variation of temperature-related mortality and socioeconomic status among the Chinese population in Hong Kong. J. Epidemiol. Community Health. 2012;66(4):322–7. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Research Gaps • Very few current literature about community sensitivity and behavioral responses to weather warnings exist • Public awareness and sensitivity towards heat weather warnings in HK community has not been examined in previous Source: Sheridan SC. A survey of public perception and response to heat warnings across four North American cities: an evaluation of municipal effectiveness. International Journal of Biometeorology 2007; 52:3-15 Wong TF, Yan YY. Perception of severe weather warnings in Hong Kong. Meteorological Applications 2006; 9(3): 377-382. Silver A, Conrad C. Public perception of and response to severe weather warnings in Nova Scotia, Canada. Meteorological Applications 2010; 17:173-179 Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Research Questions • What are the socio-demographic predictors that associate with the awareness of heat weather warnings? • What are the relationship of individual health risk perception and related behaviors that mitigate the impact of hot weather? Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Study Design • Population-based, cross-sectional, random telephone survey • 48 closed-ended questions • Last birthday sampling method • Conducted in September 2009 (two weeks after a period with 8 consecutive days of hot weather warning in effect) Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Study Population • Land-based non-institutional population, including domestic workers • Inclusion criteria: Hong Kong residents aged above 18 • Exclusion criteria: two-way permit holders from mainland & other visitors Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Analysis • Descriptive analysis for socio-demographic data • Multiple logistic regression to determine predictors for sensitivity towards heat weather warning • Statistical significance was set at α = 0.05 • Model: where: Y = heat warning sensitive ��� age+sex+education+marital status+chronic illness+having <11yr child Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
Results: Study Flow Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Chan EYY et al. Socio-demographic Predictors for Sensitivity and Behavior Modifications towards Public Temperature Warning in Urban Chinese Community. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013. Presented on the 5th Conference on East Asia and Western Pacific Meteorology and Climate. 3 Nov 2013.
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