Table 2.

Principal Component Analysis Results for Extreme Heat Sensitivity and Adaptive Capacity

Components	Sensitivity Variables	Proportion of variance	Adaptive Capacity Variables	Proportion of variance
1	Mental health diseases (anxiety and depression), Respiratory diseases (asthma and chronic obstructive pulmonary disease), Cardiovascular diseases (acute myocardial infarction, and coronary artery bypass graft), Cerebrovascular diseases (hospitalised stroke)	48.9%	Low education, Housing not suitable, Living alone, Indigenous status	41.6%
2	Age	14.4%	Population density, Impervious surfaces)	24.1%
3	General self-rated health Multiple chronic diseases	12.5%	Total minority	11.1%
4			Heat strategy guidelines	10.4%
Total variance explained:		75.8%		87.2%