Table 3 Associations between IQR increases in levels of individual pollutants and components of heart rate variability

CO (ppm)

0.30

0.32*

(0.10, 0.54)

-0.39

(-0.89, 0.11)

-3.78*

(-7.41, -0.12)

-0.03

(-0.08, 0.02)

-1.09*

(-2.12, -0.06)

-0.99

(-2.09, 0.11)

-0.38

(-0.80, 0.03)

NO (ppb)

4.40

1.22*

(0.31, 2.14)

-0.56

(-2.61, 1.50)

-1.51*

(-3.01, -0.01)

-0.09

(-0.31, 0.13)

-4.67*

(-8.89, -0.44)

-4.13

(-8.62, 0.35)

-1.77*

(-3.52, -0.02)

NO₂ (ppb)

4.30

1.40*

(0.48, 2.32)

-1.101

(-3.17, 0.97)

-1.33

(-2.82, 0.15)

-0.19

(-0.40, 0.03)

-6.41*

(-10.65, -2.17)

-6.02*

(-10.53, -1.52)

-1.17

(-2.94, 0.59)

NO_x (ppb)

8.30

1.50*

(0.56, 2.43)

-0.38

(-2.46, 1.71)

-1.46

(-3.00, 0.08)

-0.12

(-0.34, 0.09)

-6.60*

(-10.90, -2.29)

-6.01*

(-10.58, -1.44)

-1.41

(-3.21, 0.38)

O₃ (ppb)

8.70

0.30

(-0.66, 1.26)

-2.50*

(-4.67, -0.33)

-2.24

(-17.32, 12.84)

-0.32*

(-0.54, -0.11)

-5.59

(-10.01, 1.18)

-6.11

(-10.87, 1.36)

1.28

(-0.55, 3.10)

SO₂ (ppb)

4.60

0.78*

(0.15, 1.41)

-0.82

(-2.24, 0.61)

-1.07*

(-2.13, -0.002)

-0.11

(-0.25, 0.03)

-4.08*

(-7.00, -1.16)

-3.41

(-6.52, -0.31)*

-1.08

(-2.30, 0.13)

PM_2.5 (μg/m³)

9.00

0.97

(-0.04, 1.97)

-2.43*

(-4.62, -0.24)

-1.88*

(-3.46, -0.29)

-0.16

(-0.38, 0.07)

-5.34 *

(-9.96, -0.72)

-5.28*

(-10.15, -0.41)

-1.99*

(-3.91, -0.07)

UFP (particles/cm³)

12236

1.10*

(0.04, 2.16)

-1.89

(-4.38, 0.60)

-1.61*

(-3.21, -0.01)

-0.15

(-0.38, 0.08)

-7.13*

(-12.27, -1.98)

-5.03

(-10.63, 0.57)

-2.20*

(-4.24, -0.15)