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Table 5 Effects of air pollution on D-dimer and prothrombin fragment 1+2 presented as % change from the geometric mean in the blood marker (linear regression) per increase in IQR air pollutant; 38 men with chronic pulmonary disease in Erfurt, Germany, between October 2001 and May 2002

From: Short-term effects of air pollution: a panel study of blood markers in patients with chronic pulmonary disease

Pollutant

D-Dimer

Prothrombin fragment 1+2

 

%change GM ††

95%CI

%change GM ††

95%CI

UFP

    

Lag0#

0.2

-8.0 ; 9.1

0.7

-3.5 ; 5.1

Lag1#

-8.8

-17.3 ; 0.6

4.1

-0.4 ; 8.8

Lag2#

-0.3

-8.8 ; 9.0

0.9

-3.5 ; 5.5

Lag3#

2.6

-5.6 ; 11.5

0.6

-3.3 ; 4.7

Lag4#

0.9

-6.4 ; 8.8

-2.6

-6.2 ; 1.2

5-day-mean#

-1.1

-10.6 ; 9.5

1.4

-4.4 ; 7.6

ACP

    

Lag0#

-13.3 *

-24.0 ; -1.2

-0.9

-7.5 ; 6.2

Lag1#

-5.8

-16.8 ; 6.5

3.1

-2.5 ; 9.0

Lag2#

2.5

-7.0 ; 12.9

3.0

-1.5 ; 7.8

Lag3#

6.4

-2.6 ; 16.4

-1.2

-5.3 ; 3.0

Lag4#

6.2

-4.0 ; 17.5

-6.3 **

-10.5 ; -1.9

5-day-mean#

0.4

-14.0 ; 17.3

-1.1

-8.5 ; 7.0

PM 10

    

Lag0#

-10.3 **

-17.3 ; -2.7

0.7

-3.8 ; 5.5

Lag1#

-9.3 *

-16.0 ; -2.1

0.6

-2.9 ; 4.2

Lag2#

-1.7

-8.0 ; 5.1

0.6

-2.6 ; 3.8

Lag3#

4.3

-2.5 ; 11.6

-2.5

-5.9 ; 0.9

Lag4#

4.6

-2.4 ; 12.0

-5.1 **

-8.5 ; -1.6

5-day-mean#

-3.6

-12.4 ; 6.1

-3.5

-8.9 ; 2.1

OC

    

Lag0#

-6.0

-14.2 ; 3.0

-0.9

-6.3 ; 4.9

Lag1#

-2.4

-9.5 ; 5.3

0.9

-2.8 ; 4.7

Lag2#

4.6

-1.9 ; 11.6

0.6

-2.9 ; 4.2

Lag3#

7.2 *

1.1 ; 13.7

-2.1

-5.7 ; 1.6

Lag4#

5.5

-1.0 ; 12.5

-4.5 *

-8.3 ; -0.6

5-day-mean#

3.9

-3.0 ; 11.4

-2.2

-6.9 ; 2.8

EC

    

Lag0#

-4.1

-11.9 ; 4.3

2.6

-2.5 ; 7.8

Lag1#

-3.5

-10.0 ; 3.5

1.7

-1.8 ; 5.3

Lag2#

3.2

-2.6 ; 9.4

1.2

-2.0 ; 4.6

Lag3#

5.3

-0.3 ; 11.1

-2.5

-5.6 ; 0.8

Lag4#

3.8

-2.0 ; 9.9

-4.2 *

-7.3 ; -0.9

5-day-mean#

3.1

-4.3 ; 11.2

-1.6

-6.8 ; 3.9

  1. IQR, interquartile range; GM: geometric mean (antilog of arithmetic mean of log-transformed variable); %-change: antilog of effect estimate obtained from regression minus 1 *100
  2. § UFP, ultrafine particles number concentration of particles with a size range of 0.01 to 0.1 μm in diameter; ACP, accumulation mode particles, particles with a size range of 0.1 to 1.0 μm; PM10, mass concentration of particles less than 10 μm in diameter; OC, organic carbon; EC, elemental carbon
  3. # lag 0 (lag 1/lag 2/lag 3/lag 4/5-day-mean) = average pollutant concentration 0-23 (24-47/48-71/72-95/96-119/0-119) hours prior to blood withdrawal
  4. * p < 0.05; ** p < 0.01; p ≤ 0.1