Table 3.

Results of simple (crude) and multiple (adjusted) conditional logistic regression models of the heat dome deaths compared with the typical weather deaths

Variable	Simple regression crude OR [95% CI]	Multiple regression adjusted OR [95% CI]
Age category
<65 years	Reference	Reference
65–74 years	1.50 [1.07, 2.10]	1.71 [1.19, 2.52]
75–84 years	1.67 [1.20, 2.32]	1.83 [1.26, 2.65]
85+ years	1.34 [0.94, 1.81]	1.55 [1.06, 2.26]
Sex
Male	Reference	Reference
Female	1.61 [1.29, 2.01]	1.59 [1.23, 2.04]
Combined material and social deprivation index
1—materially and socially privileged	0.80 [0.47, 1.38]	0.92 [0.53, 1.59]
2—average material and social deprivation	Reference	Reference
3—materially privileged but socially deprived	1.59 [1.03, 2.45]	1.53 [0.98, 2.40]
4—materially deprived but socially privileged	1.85 [1.20, 2.85]	1.89 [1.21, 2.95]
5—materially and socially deprived	3.03 [1.99, 4.62]	2.88 [1.85, 4.49]
Surrounding environment
Greenness within 100 m (IQR increase)	0.71 [0.60, 0.83]	0.78 [0.64, 0.91]
Building footprint within 1 km (IQR increase)	1.39 [1.15, 1.68]	–
Distance from major road (IQR increase)	0.85 [0.76, 0.95]	–
Distance from large water body (IQR increase)	1.20 [1.00, 1.46]	–

Estimates of the the OR and 95% CI are provided for seven crude models and one best-fitted adjusted model. Effects of continuous variables are shown for one IQR increase in the value, based on the distribution of the variable across all deaths. A dash indicates that the variable was not included in the best-fitted model.

95% CI, 95% confidence interval; IQR, interquartile range; OR, odds ratio.