Development of the Adjusted Wind Chill Equivalent Temperature (AWCET) for cold mortality assessment across a subtropical city: validation and comparison with a spatially-controlled time-stratified approach

Ho, Hung Chak; Wong, Man Sing; Abbas, Sawaid; Zhu, Rui

doi:10.1186/s12889-019-7612-5

Table 1 Odds ratios (OR) for assessment of AWCET validation

From: Development of the Adjusted Wind Chill Equivalent Temperature (AWCET) for cold mortality assessment across a subtropical city: validation and comparison with a spatially-controlled time-stratified approach

Temperature thresholds for cases		Controls: (Same day and same weekday for 4 weeks before)		Controls: (Same day and same weekday for 8 weeks before)		Controls: (Same day and same weekday for 4 weeks after)		Controls: (Same day and same weekday for 8 weeks after)
Temperature thresholds for cases		Log-linear	Curve-linear	Log-linear	Curve-linear	Log-linear	Curve-linear	Log-linear	Curve-linear
All-cause mortality	Average temperature < = 5th percentile	1.706 [1.682, 1.731]	1.020 [1.019, 1.020]	1.794 [1.770, 1.819]	1.021 [1.021, 1.022]	1.705 [1.679, 1.732]	1.020 [1.019, 1.020]	1.825 [1.798, 1.853]	1.022 [1.022, 1.023]
	Average temperature < = 3rd percentile	1.877 [1.837, 1.919]	1.024 [1.022, 1.025]	2.011 [1.968, 2.054]	1.026 [1.025, 1.027]	1.937 [1.892, 1.983]	1.025 [1.024, 1.026]	2.108 [2.059, 2.157]	1.028 [1.027, 1.029]
	Average temperature < = 1st percentile	2.463 [2.303, 2.634]	1.038 [1.035, 1.041]	2.768 [2.588, 2.960]	1.043 [1.040, 1.046]	2.514 [2.356, 2.683]	1.038 [1.035, 1.041]	2.947 [2.764, 3.142]	1.045 [1.042, 1.048]
Cardiovascular mortality	Average temperature < = 5th percentile	1.718 [1.668, 1.770]	1.020 [1.09, 1.021]	1.802 [1.752, 1.854]	1.022 [1.020, 1.023]	1.704 [1.650, 1.758]	1.020 [1.019, 1.021]	1.817 [1.762, 1.875]	1.022 [1.021, 1.023]
	Average temperature < = 3rd percentile	1.880 [1.798, 1.967]	1.024 [1.022, 1.026]	2.011 [1.924, 2.101]	1.026 [1.024, 1.028]	1.932 [1.841, 2.028]	1.025 [1.023, 1.027]	2.092 [1.995, 2.193]	1.028 [1.026, 1.030]
	Average temperature < = 1st percentile	2.595 [2.233, 3.015]	1.040 [1.033, 1.047]	2.959 [2.544, 3.440]	1.046 [1.039, 1.053]	2.564 [2.232, 2.946]	1.039 [1.032, 1.045]	2.961 [2.584, 3.393]	1.045 [1.039, 1.051]
Respiratory mortality	Average temperature < = 5th percentile	1.691 [1.642, 1.741]	1.019 [1.018, 1.020]	1.771 [1.723, 1.821]	1.021 [1.020, 1.022]	1.719 [1.665, 1.774]	1.020 [1.019, 1.021]	1.838 [1.782, 1.896]	1.023 [1.021, 1.024]
	Average temperature < = 3rd percentile	1.853 [1.773, 1.938]	1.023, 1.021, 1.025]	1.983 [1.898, 2.071]	1.026 [1.024, 1.028]	1.939 [1.849, 2.034]	1.025 [1.023, 1.027]	2.107 [2.010, 2.209]	1.028 [1.026, 1.030]
	Average temperature < = 1st percentile	2.438 [2.125, 2.798]	1.038 [1.031, 1.044]	2.756 [2.404, 3.160]	1.043 [1.036, 1.049]	2.501 [2.196, 2.849]	1.037 [1.031, 1.043]	2.945 [2.590, 3.350]	1.045 [1.39, 1.051]
Cancer-related mortality	Average temperature < = 5th percentile	1.708 [1.665, 1.753]	1.020 [1.019, 1.021]	1.803 [1.760, 1.848]	1.022 [1.021, 1.023]	1.706 [1.659, 1.755]	1.020 [1.019, 1.021]	1.829 [1.780, 1.880]	1.022 [1.021, 1.023]
	Average temperature < = 3rd percentile	1.887 [1.813, 1.964]	1.024 [1.022, 1.026]	2.020 [1.943, 2.101]	1.026 [1.025, 1.028]	1.936 [1.854, 2.022]	1.025 [1.024, 1.027]	2.113 [2.025, 2.205]	1.029 [1.027, 1.030]
	Average temperature < = 1st percentile	2.337 [2.087, 2.615]	1.036 [1.030, 1.041]	2.594 [2.318, 2.902]	1.040 [1.035, 1.046]	2.404 [2.144, 2.697]	1.036 [1.031, 1.041]	2.845 [2.539, 3.187]	1.044 [1.038, 1.049]

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