| |
General linear regression
|
Mixed effect model (fixed effects)
|
|---|
|
Variable
|
Beta
|
Standard error
|
p-value
|
Partial R2
|
VIF
|
Beta
|
Standard error
|
p-value
|
|---|
|
Intercept
|
1.54
|
0.15
|
<.0001
| |
0
|
1.55
|
0.18
|
<.0001
|
|
Percent of in-vehicle travel time
|
16.90
|
1.20
|
<.0001
|
0.48
|
1.01
|
17.40
|
1.10
|
<.0001
|
|
Length-weighted AADT within 500 m
|
1.02*10-5
|
2.10*10-6
|
<.0001
|
0.08
|
1.05
|
0.94*10-5
|
3.07*10-6
|
0.0027
|
|
Had work-related exposure to traffic pollutants (yes/no)a
|
0.41
|
0.15
|
0.0080
|
0.02
|
1.05
|
0.57
|
0.27
|
0.0378
|
|
Weekday (1/0)
|
0.33
|
0.14
|
0.0192
|
0.01
|
1.01
|
0.31
|
0.13
|
0.0173
|
-
aWork-related exposure includes working around parking garage, kiosk, auto shop, buses, trucks, or heavy traffic, or driving a car/bus/truck during the work.
