Table 4 Approximation by quadratic curve between death (/a hundred thousand people/day) and climate parameters
From: Lower air temperature is associated with ambulance transports and death in Takamatsu area, Japan
r | p | Quadratic curve (Y: death, X: climate parameters) | |
|---|---|---|---|
Mean air temperature (°C) | 0.701 | <0.0001 | Y = 0.001X 2 − 0.077X + 3.289 |
Mean of the highest air temperature (°C) | 0.703 | <0.0001 | Y = 0.001X 2 − 0.085X + 3.602 |
Mean of the lowest air temperature (°C) | 0.698 | <0.0001 | Y= 0.001X 2 − 0.067X + 3.006 |
The highest air temperature (°C) | 0.697 | <0.0001 | Y = 0.001X 2 − 0.086X + 3.944 |
The lowest air temperature (°C) | 0.674 | <0.0001 | Y = 0.001X 2 − 0.055X + 2.725 |
Mean humidity (%) | 0.513 | <0.0001 | Y = −0.001X 2 + 0.12X − 0.203 |
The lowest humidity (%) | 0.305 | 0.0059 | Y = −0.001X 2 + 0.05X + 2.074 |
Daylight hours (h/month) | 0.208 | 0.0973 |