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Table 3 Descriptive statistics for prior one-year exposure to coarse particulate matter (PM10–2.5) concentrations (μg/m3) for SWAN sites, 1999–2004

From: Association between coarse particulate matter and inflammatory and hemostatic markers in a cohort of midlife women

Site

N

Mean

SD

Median

IQR

All sites

5175

10.9

3.6

11.5

4.0

By site

 Detroit, MI

719

10.6

3.5

10.3

3.9

 Chicago, IL

1296

12.1

1.9

12.0

2.4

 Oakland, CA

1229

10.9

1.8

11.6

2.2

 Los Angeles, CA

209

17.5

2.3

18.4

1.6

 Newark, NJ

366

12.4

4.9

12.8

5.7

 Pittsburgh, PA

1356

8.5

3.8

7.4

6.8