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Table 1 Descriptive characteristics and event day exposures from 2000 to 2015 in the US and in each state included in the study

From: Short term exposure to air pollution and mortality in the US: a double negative control analysis

 

Total

OH

MA

NJ

GA

KS

IN

MI

 

N = 3,063,192

N = 691,180

N = 986,257

N = 355,231

N = 311,146

N = 63,462

N = 99,035

N = 556,881

Sex

 Male

46.9%

47.3%

45.9%

46.2%

48.0%

46.9%

47.3%

48.0%

 Female

53.1%

52.7%

54.1%

53.8%

52.0%

53.1%

52.7%

52.0%

 Age (years)

75.6 (18.1)

75.1 (16.5)

77.4 (20.4)

75.9 (16.2)

72.1 (18.1)

76.4 (17.2)

74.5 (16.8)

74.9 (16.6)

Race

 White

87.2%

88.4%

92.8%

84.3%

71.7%

92.0%

91.8%

84.7%

 Black

10.8%

10.9%

4.0%

12.6%

27.3%

4.8%

7.6%

13.6%

 Other

2.0%

0.7%

3.1%

3.2%

1.0%

3.2%

0.6%

1.6%

Education

 < HSa

21.2%

24.4%

17.8%

24.5%

11.7%

24.4%

15.8%

26.9%

 HS

44.6%

49.0%

51.2%

49.9%

14.3%

42.1%

23.9%

45.0%

 > HS

25.0%

23.9%

29.9%

24.9%

11.5%

32.3%

11.0%

26.6%

Urbanicity

 Urban

75.1%

70.6%

83.5%

91.6%

67.2%

32.8%

41.3%

68.8%

 Rural

24.9%

29.4%

16.5%

8.4%

32.8%

67.2%

58.7%

31.2%

Case Day Exposure

 PM2.5 (μg/m3)

10.4 (6.15)

11.8 (5.90)

8.66 (5.67)

11.7 (7.36)

11.8 (5.45)

9.71 (4.74)

13.0 (6.60)

9.63 (5.90)

 O3 (ppb)

37.7 (11.0)

38.0 (10.5)

37.0 (11.0)

37.2 (12.0)

41.3 (12.6)

38.0 (10.6)

38.2 (13.2)

36.6 (8.52)

 NO2 (ppb)

21.2 (12.1)

18.4 (10.1)

22.4 (11.8)

31.9 (13.4)

15.3 (10.7)

16.3 (10.0)

17.5 (9.95)

20.3 (10.8)

 Temperature (Kelvin)

284 (10.3)

284 (10.4)

283 (9.61)

284 (9.63)

290 (9.21)

285 (11.2)

284 (11.2)

282 (10.7)

 Humidity (g/cm3)

0.0073 (0.0045)

0.0076 (0.0045)

0.0068 (0.0042)

0.0076 (0.0046)

0.0095 (0.0047)

0.0077 (0.0048)

0.0075 (0.0046)

0.00667 (0.0042)

  1. aDefinition of abbreviations: HS=High school
  2. For sex, race, and education, data were presented as a percentage to the total. For age and case-day exposure, data were presented as mean (standard deviation)