Table 2 Spearman correlation coefficients between weather conditions in Hangzhou during the study period.

From: The effects of temperature variability on ischemic heart disease mortality in Hangzhou, China

 

IHD death

PM25

NO2

SO2

Temperature

DTR

Relative humidity

IHD death

1

      

PM25

0.142**

1

     

NO2

0.161**

0.703**

1

    

SO2

0.142**

0.677**

0.643**

1

   

Temperature

− 0.339**

− 0.378**

− 0.519**

− 0.447**

1

  

DTR

− 0.007

0.246**

0.130**

0.252**

0.168**

1

 

Relative humidity

− 0.097**

− 0.225**

− 0.069*

− 0.487**

0.085**

− 0.642**

1

  1. *p < 0.05 **p < 0.01.