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Table 5 Correlations between mean monthly meteorological factors and the number of patients with tree pollen allergy

From: Impact of meteorological variation on hospital visits of patients with tree pollen allergy

Month

Meteorological factors

No. of patients

  

April

May

June

July

Totala

February

Average temperature (°C)

-0.21

0.03

0.56

-0.08

0.06

 

Maximum temperature (°C)

-0.14

0.06

0.59

-0.04

0.11

 

Minimum temperature (°C)

-0.29

-0.02

0.49

-0.14

-0.01

 

Relative humidity (%)

-0.12

-0.007

0.21

-0.26

-0.05

 

Precipitation (mm)

0.08

0.24

0.44

0.38

0.30

March

Average temperature (°C)

0.39

0.38

0.37

0.24

0.38

 

Maximum temperature (°C)

0.15

0.11

0.05

0.07

0.11

 

Minimum temperature (°C)

0.71*

0.76*

0.68*

0.56

0.75*

 

Relative humidity (%)

0.63

0.57

0.54

0.25

0.56

 

Precipitation (mm)

0.27

0.35

0.60

-0.03

0.33

April

Average temperature (°C)

0.33

0.18

-0.14

0.35

0.21

 

Maximum temperature (°C)

0.30

0.14

-0.16

0.24

0.15

 

Minimum temperature (°C)

0.23

0.24

-0.02

0.37

0.22

 

Relative humidity (%)

0.16

0.29

0.25

-0.10

0.16

 

Precipitation (mm)

-0.03

-0.11

-0.12

0.28

-0.005

May

Average temperature (°C)

-

0.54

0.47

0.36

0.5

 

Maximum temperature (°C)

-

0.53

0.38

0.34

0.45

 

Minimum temperature (°C)

-

0.36

0.45

0.22

0.38

 

Relative humidity (%)

-

-0.1

0.03

-0.44

-0.18

 

Precipitation (mm)

-

0.26

0.55

-0.01

0.3

  1. Data are Pearson's correlation coefficients. *P < 0.05
  2. aTotal numbers of patients are the sum of patients with tree pollen allergy from April through July. For meteorological factors in May, total numbers of patients from May to July were used