Table 1 Summary of daily death counts and environmental parameters included in the analysis
Variable | Overall | Winter | Spring | Summer | Fall |
|---|---|---|---|---|---|
Daily Mortality (deaths/day) | Mean (SD) | ||||
Total | 15.3 (21.5) | 15.7 (23.7) | 14.4 (21.4) | 13.3 (20) | 13.9 (20.7) |
CVD | 5 (8.3) | 5.4 (9.3) | 4.9 (8.3) | 4.5 (7.6) | 4.6 (7.9) |
MI | 1.2 (2.4) | 1.4 (2.7) | 1.3 (2.4) | 1.1 (2.2) | 1.2 (2.3) |
STROKE | 1 (1.6) | 1.03 (1.7) | 0.9 (1.6) | 0.8 (1.5) | 0.9 (1.5) |
Environmental Parameters | |||||
Temperature (°C) | 14.2 (10.1) | 3.9 (8.5) | 13.6 (7.7) | 23.9 (4.26) | 15.07 (7.6) |
Z-score | 0 (1.0) | −1.04 (0.8) | −0.05 (0.7) | 0.9 (0.4) | 0.1 (0.7) |
Relative Humidity (%) | 66.2 (16.2) | 69.4 (16.1) | 69.5 (15.7) | 62.1 (16.6) | 65.8 (15.6) |
Z-score | 0.01 (1.0) | 0.2 (1.0) | −0.25 (1.0) | 0.01 (0.9) | 0.1 (0.9) |
Kp_index | 16.5 (9.4) | 15.8 (9.1) | 17.3 (9.6) | 15.8 (8.8) | 17 (10.0) |
Z-score | 0.02 (1.0) | −0.05 (0.9) | 0.1 (1.0) | −0.05 (0.9) | 0.07 (1.0) |
Number of GMD storms (Kp index > 5; ap index > 29) | 936,368 | 154,316 | 290,004 | 212,180 | 279,868 |
24-h Average PM2.5 (μg/m3) | 12.6 (7.5) | 13.0 (7.8) | 11.2 (6.2) | 14.3 (8.2) | 12 (7.4) |
Z-score | 0.05 (1.0) | 0.13 (1.0) | −0.13 (0.8) | 0.2 (1.1) | −0.04 (1.0) |