Table 2 Descriptive statistics of environmental exposures for the year prior to stroke and mean Values over the 10 years before stroke.

From: No associations between environmental exposures and stroke severity in a low pollution area in Sweden

 

Mean

SD

Median

Maximum

Minimum

Range

1 year before stroke

 LAeq,24h (dB)

55.05

6.90

55.19

72.89

17.36

55.54

 NOx (µg/m3)

15.30

7.76

13.75

53.90

2.99

50.91

 PM10 (µg/m3)

14.39

1.93

14.27

29.54

9.30

20.23

Mean of 10 years before stroke

 LAeq,24h (dB)

54.78

6.69

55.03

72.10

17.21

54.89

 NOx (µg/m3)

16.41

7.71

15.04

62.60

3.62

58.99

 PM10 (µg/m3)

15.09

1.77

14.93

30.43

10.38

20.05

  1. LAeq,24h: the A-weighted 24-h equivalent sound pressure level in dB; NOx: the concentration of nitrogen oxides in µg/m3; PM10: the concentration of particulate matter with a diameter of < 10 µm in µg/m3. SD, standard deviation.
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