Table 4 |
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|
Effects of a 10 μg increase in air particles on blood pressure and heart rate, by group and on all subjects combineda |
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|
All Subjects (obs = 240b) |
Office Workers (obs = 120c) |
Truck Drivers (obs = 120d) |
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|
|
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|
β |
(95%CI) |
p-value |
β |
(95%CI) |
p-value |
β |
(95%CI) |
p-value |
|
|
|
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|
Systolic blood pressure (mmHg) |
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|
|
|||||||||
|
Personal PM2.5 (work hours) |
-0.01 |
(-0.18;0.17) |
0.94 |
-0.06 |
(-0.29;0.18) |
0.64 |
0.15 |
(-0.16;0.46) |
0.33 |
|
|
|||||||||
|
Personal EC (work hours) |
-0.29 |
(-2.32;1.73) |
0.77 |
-2.54 |
(-6.39;1.31) |
0.19 |
1.23 |
(-1.53;3.99) |
0.38 |
|
|
|||||||||
|
Ambient PM10 (1-day mean) |
0.20 |
(-0.05;0.45) |
0.11 |
0.10 |
(-0.26;0.46) |
0.57 |
0.24 |
(-0.13;0.60) |
0.20 |
|
|
|||||||||
|
Ambient PM10 (2-day mean) |
0.26 |
(-0.08;0.59) |
0.14 |
-0.05 |
(-0.53;0.44) |
0.85 |
0.47 |
(-0.04;0.97) |
0.07 |
|
|
|||||||||
|
Ambient PM10 (5-day mean) |
0.63 |
(0.09;1.16) |
0.02 |
0.08 |
(-0.80;0.95) |
0.86 |
0.97 |
(0.15;1.78) |
0.02 |
|
|
|||||||||
|
Ambient PM10 (8-day mean) |
0.98 |
(0.34;1.61) |
0.003 |
0.53 |
(-0.44;1.50) |
0.28 |
1.31 |
(0.32;2.31) |
0.01 |
|
|
|||||||||
|
Diastolic blood pressure (mmHg) |
|||||||||
|
|
|||||||||
|
Personal PM2.5 (work hours) |
0.04 |
(-0.11;0.19) |
0.57 |
0.00 |
(-0.21;0.22) |
0.97 |
0.09 |
(-0.14;0.33) |
0.42 |
|
|
|||||||||
|
Personal EC (work hours) |
-1.26 |
(-2.94;0.43) |
0.14 |
-4.52 |
(-7.87;-1.16) |
0.01 |
0.23 |
(-1.84;2.3) |
0.83 |
|
|
|||||||||
|
Ambient PM10 (1-day mean) |
0.18 |
(-0.03;0.39) |
0.09 |
0.11 |
(-0.21;0.43) |
0.49 |
0.24 |
(-0.03;0.51) |
0.08 |
|
|
|||||||||
|
Ambient PM10 (2-day mean) |
0.17 |
(-0.11;0.46) |
0.23 |
0.06 |
(-0.38;0.50) |
0.78 |
0.15 |
(-0.22;0.53) |
0.42 |
|
|
|||||||||
|
Ambient PM10 (5-day mean) |
0.50 |
(0.06;0.95) |
0.03 |
0.31 |
(-0.43;1.06) |
0.40 |
0.34 |
(-0.29;0.97) |
0.28 |
|
|
|||||||||
|
Ambient PM10 (8-day mean) |
0.71 |
(0.18;1.24) |
0.01 |
0.83 |
(0.02;1.64) |
0.04 |
0.07 |
(-0.72;0.87) |
0.86 |
|
|
|||||||||
|
Mean arterial pressure (mmHg) |
|||||||||
|
|
|||||||||
|
Personal PM2.5 (work hours) |
0.03 |
(-0.11;0.17) |
0.66 |
-0.01 |
(-0.19;0.18) |
0.95 |
0.12 |
(-0.11;0.35) |
0.30 |
|
|
|||||||||
|
Personal EC (work hours) |
-0.94 |
(-2.52;0.63) |
0.24 |
-3.74 |
(-6.70;-0.78) |
0.01 |
0.51 |
(-1.55;2.57) |
0.62 |
|
|
|||||||||
|
Ambient PM10 (1-day mean) |
0.20 |
(0.01;0.39) |
0.04 |
0.12 |
(-0.16;0.41) |
0.39 |
0.25 |
(-0.02;0.51) |
0.07 |
|
|
|||||||||
|
Ambient PM10 (2-day mean) |
0.20 |
(-0.07;0.46) |
0.14 |
0.05 |
(-0.34;0.44) |
0.81 |
0.25 |
(-0.13;0.62) |
0.19 |
|
|
|||||||||
|
Ambient PM10 (5-day mean) |
0.55 |
(0.13;0.96) |
0.01 |
0.27 |
(-0.42;0.95) |
0.44 |
0.56 |
(-0.05;1.17) |
0.07 |
|
|
|||||||||
|
Ambient PM10 (8-day mean) |
0.81 |
(0.31;1.30) |
0.002 |
0.74 |
(0.00;1.48) |
0.05 |
0.48 |
(-0.29;1.26) |
0.22 |
|
|
|||||||||
|
Pulse pressure (mmHg) |
|||||||||
|
|
|||||||||
|
Personal PM2.5 (work hours) |
-0.06 |
(-0.22;0.10) |
0.49 |
-0.06 |
(-0.31;0.20) |
0.65 |
0.06 |
(-0.20;0.31) |
0.65 |
|
|
|||||||||
|
Personal EC (work hours) |
0.75 |
(-1.12;2.61) |
0.42 |
2.69 |
(-1.42;6.8) |
0.19 |
0.98 |
(-1.18;3.14) |
0.37 |
|
|
|||||||||
|
Ambient PM10 (1-day mean) |
0.01 |
(-0.22;0.23) |
0.96 |
-0.03 |
(-0.40;0.33) |
0.86 |
0.02 |
(-0.28;0.32) |
0.90 |
|
|
|||||||||
|
Ambient PM10 (2-day mean) |
0.10 |
(-0.21;0.41) |
0.51 |
-0.10 |
(-0.60;0.40) |
0.68 |
0.33 |
(-0.08;0.75) |
0.11 |
|
|
|||||||||
|
Ambient PM10 (5-day mean) |
0.12 |
(-0.38;0.61) |
0.64 |
-0.26 |
(-1.13;0.60) |
0.54 |
0.56 |
(-0.13;1.26) |
0.11 |
|
|
|||||||||
|
Ambient PM10 (8-day mean) |
0.22 |
(-0.37;0.81) |
0.46 |
-0.38 |
(-1.35;0.59) |
0.44 |
1.08 |
(0.27;1.89) |
0.01 |
|
|
|||||||||
|
Heart rate (bpm) |
|||||||||
|
|
|||||||||
|
Personal PM2.5 (work hours) |
0.15 |
(-0.08;0.39) |
0.20 |
0.00 |
(-0.31;0.30) |
0.97 |
0.30 |
(-0.14;0.74) |
0.18 |
|
|
|||||||||
|
Personal EC (work hours) |
1.03 |
(-1.62;3.68) |
0.44 |
-2.08 |
(-6.94;2.79) |
0.40 |
2.19 |
(-1.52;5.89) |
0.24 |
|
|
|||||||||
|
Ambient PM10 (1-day mean) |
0.14 |
(-0.19;0.48) |
0.40 |
-0.03 |
(-0.48;0.41) |
0.88 |
0.29 |
(-0.23;0.81) |
0.27 |
|
|
|||||||||
|
Ambient PM10 (2-day mean) |
0.23 |
(-0.23;0.68) |
0.33 |
-0.14 |
(-0.73;0.46) |
0.64 |
0.61 |
(-0.13;1.35) |
0.10 |
|
|
|||||||||
|
Ambient PM10 (5-day mean) |
0.57 |
(-0.14;1.29) |
0.12 |
-0.13 |
(-1.14;0.89) |
0.81 |
1.20 |
(-0.02;2.42) |
0.05 |
|
|
|||||||||
|
Ambient PM10 (8-day mean) |
0.67 |
(-0.20;1.53) |
0.13 |
-0.44 |
(-1.59;0.71) |
0.45 |
1.69 |
(0.27;3.12) |
0.02 |
|
|
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|
aAdjusted for age, sex, BMI, smoking status, pack-years, number of cigarettes smoked and tea drinking during the study time, usual alcohol drinking, work hours/week, day of the week, and appropriate outdoor temperature (i.e., temperature averaged over the same time window as the air particle exposure variable). bFor EC, results are estimated on 238 observations because of two missing values; for PM2.5, results are from 239 observations because of one missing value. cFor EC exposure, results are estimated on 119 observations because of two missing values. dFor PM2.5 and EC exposures, results are estimated on 119 observations because of a missing value. |
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|
Baccarelli et al. Environmental Health 2011 10:108 doi:10.1186/1476-069X-10-108 |
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