Percentage change in heart rate variability associated with an interquartile range change in gaseous pollution exposure
| Variable | SDNN (ms) | RMSSD (ms) | PNN50 (%) | LFHFR |
|---|---|---|---|---|
| All models control for subject, temperature, day of week, hour of day, medication use on that day, and time trend. | ||||
| *24 hour average. | ||||
| †1 hour average. | ||||
| O3† | − 3.1 (−7.0 to 0.9) | − 8.5 (−16.6 to 0.3) | − 6.5 (−18.9 to 7.8) | 5.7 (−1.5 to −13.4) |
| O3* | − 1.5 (−5.7 to 2.9) | − 2.3 (−11.6 to 7.9) | 0.9 (−13.4 to 17.6) | − 4.8 (−11.8 to 2.7) |
| SO2† | 0.4 (−1.3 to 2.1) | 1.4 (−2.6 to 5.5) | 3.8 (−12.1 to 22.5) | − 1.2 (−4.2 to 1.8) |
| SO2* | 0.4 (−4.2 to 5.1) | − 0.3 (−1.3 to 0.8) | − 0.2 (20.9 to 17.6) | 2.9 (−4.9 to 11.4) |
| NO2† | − 0.4 (2.1 to −2.9) | − 0.9 (−6.3 to 4.9) | − 1.2 (−9.5 to 7.9) | 1.8 (−2.6 to 6.3) |
| NO2* | − 0.7 (−3.5 to 2.3) | − 2.3 (−8.7 to 4.4) | − 5.5 (−14.7 to 4.6) | 5.0 (−0.2 to 10.5) |
| CO† | − 2.6 (−5.6 to 0.5) | − 3.9 (−10.6 to 3.3) | − 3.5 (−13.7 to 8.0) | 4.5 (−1.2 to 10.5) |
| CO* | − 4.2 (−0.6 to −7.7) | − 10.2 (−2.4 to −17. 4) | − 14.8 (−3.0 to −25.2) | 6.2 (−0.6 to 13.4) |