Table 1 Distribution of average air pollutant values for the CPS-II Nutrition Cohort during follow-upa

From: Outdoor air pollution and risk of incident adult haematologic cancer subtypes in a large US prospective cohort

Variable

Mean

Min

5th

25th

50th

75th

95th

Max

5th-mean difference

PM2.5 (µg/m3)

12.3

3.3

8.3

10.3

12.1

14.1

17.2

28.8

4.1

PM10 (µg/m3)

22.1

8.9

15.5

18.8

21.4

24.3

31.7

68.7

6.7

PM10–2.5(µg/m3)

9.8

1.1

4.8

6.9

9.2

11.7

17.8

41.5

5.0

NO2 (ppb)

13.6

1.7

6.5

9.5

12.6

16.5

24.4

51.1

7.2

O3 (ppb)

48.2

28.4

38.3

44.6

48.4

52.5

56.7

69.1

9.9

SO2 (ppb)

3.8

0.5

1.5

2.3

3.4

4.8

7.4

19.5

2.3

CO (ppm)

0.51

0.07

0.30

0.39

0.47

0.59

0.89

2.00

0.21

  1. aValues for pollutants are an average for each participant from baseline to time of event or censoring. The follow-up period of the cohort was from the years 1992–2017 with air pollutant concentrations modelled with a 1-year lag from 1991–2016.
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