Response
|
Study
|
dfN
|
dfD
|
p-value
|
---|
Heart rate
|
1
|
35
|
421
|
*0.0246
|
|
2
|
35
|
455
|
0.365
|
|
3
|
35
|
493
|
*0.0008
|
|
4
|
35
|
504
|
0.661
|
lnSDNN
|
1
|
35
|
421
|
0.591
|
|
2
|
35
|
455
|
0.061
|
|
3
|
35
|
493
|
*0.0372
|
|
4
|
35
|
504
|
0.356
|
lnRMSSD
|
1
|
35
|
421
|
0.076
|
|
2
|
35
|
455
|
0.546
|
|
3
|
35
|
493
|
0.289
|
|
4
|
35
|
504
|
0.266
|
MAP
|
1
|
35
|
391
|
*0.0124
|
|
2
|
35
|
456
|
*0.0107
|
|
3
|
35
|
495
|
*0.0106
|
|
4
|
35
|
504
|
0.459
|
Systolic
|
1
|
35
|
391
|
*0.0239
|
|
2
|
35
|
456
|
*0.0127
|
|
3
|
35
|
495
|
*0.0193
|
|
4
|
35
|
504
|
0.476
|
Diastolic
|
1
|
35
|
391
|
*0.0085
|
|
2
|
35
|
456
|
*0.0097
|
|
3
|
35
|
495
|
*0.0059
|
|
4
|
35
|
504
|
0.415
|
- Data are expressed as p-values for the interaction of Exposure (Air vs. PM2.5) and time (1 h intervals). dfN-degrees freedom for subjects, dfD degrees freedom for observations. *p < 0.05.