Table 2.
Factor loadings (λ1j and α1k coefficients) of the measurement models for the relation of Traffic and Parasympathetic Tone latent variables to its various marker variablesa and the corresponding variance of latent (1/τTraffic and 1/τParasympathetic Tone) and its marker (1/τjX and 1/τkY) variables
| Moving average | Latent/ Markers | Factor loading (λ1j) (95% PI)b | Variance (95% PI) | Latent/Markers | Factor loading (α1k) (95% PI)b | Variance (95% PI) |
|---|---|---|---|---|---|---|
| 04-hour |
Traffic/ |
|
0.137 (0.112, 0.165) |
Parasympathetic |
|
1.720 (1.535, 1.921) |
| BCc |
1.00 |
0.394 (0.364, 0.425) |
Tone/ |
|
|
|
| CO |
0.65 (0.59, 0.72) |
0.010 (0.006, 0.013) |
HFc |
1.00 |
0.309 (0.273, 0.346) |
|
| NO |
0.05 (0.05, 0.06) |
3.0E-4 (2.7E-4, 3.4E-4) |
SDNN |
0.39 (0.38, 0.40) |
0.073 (0.066, 0.080) |
|
| NO2 |
0.01 (0.01, 0.01) |
4.3E-5 (4.0E-5, 4.7E-5) |
rMSSD |
0.56 (0.55, 0.57) |
0.052 (0.043, 0.062) |
|
| 24-hour |
Traffic/ |
|
0.036 (0.029, 0.044) |
Parasympathetic |
|
1.728 (1.542, 1.930) |
| BC |
1.00 |
0.127 (0.118, 0.136) |
Tone/ |
|
|
|
| CO |
0.95 (0.86, 1.05) |
0.010 (0.008, 0.011) |
HF |
1.00 |
0.305 (0.271, 0.342) |
|
| NO |
0.06 (0.06, 0.07) |
1.1E-4 (1.0E-4, 1.2E-4) |
SDNN |
0.39 (0.38, 0.40) |
0.074 (0.067, 0.081) |
|
| NO2 |
0.02 (0.02, 0.02) |
3.2E-5 (3.0E-5, 3.4E-5) |
rMSSD |
0.56 (0.55, 0.57) |
0.051 (0.042, 0.060) |
|
| 48-hour |
Traffic/ |
|
0.023 (0.019, 0.029) |
Parasympathetic |
|
1.754 (1.568, 1.951) |
| BC |
1.00 |
0.094 (0.087, 0.102) |
Tone/ |
|
|
|
| CO |
1.01 (0.91, 1.12) |
0.009 (0.007, 0.010) |
HF |
1.00 |
0.306 (0.270, 0.343) |
|
| NO |
0.06 (0.06, 0.07) |
7.7E-5 (7.0E-5, 8.5E-5) |
SDNN |
0.39 (0.38, 0.40) |
0.073 (0.067, 0.080) |
|
| NO2 |
0.02 (0.02, 0.03) |
2.8E-5 (2.6E-5, 3.0E-5) |
rMSSD |
0.56 (0.55, 0.57) |
0.052 (0.042, 0.061) |
|
| 72-hour |
Traffic/ |
|
0.016 (0.013, 0.020) |
Parasympathetic |
|
1.753 (1.569, 1.953) |
| BC |
1.00 |
0.069 (0.064, 0.075) |
Tone/ |
|
|
|
| CO |
1.11 (1.00, 1.24) |
0.008 (0.006, 0.009) |
HF |
1.00 |
0.304 (0.268, 0.340) |
|
| NO |
0.06 (0.06, 0.07) |
5.9E-5 (5.4E-5, 6.5E-5) |
SDNN |
0.39 (0.38, 0.40) |
0.074 (0.067, 0.081) |
|
| NO2 | 0.03 (0.02, 0.03) | 2.5E-5 (2.4E-5, 2.7E-5) | rMSSD | 0.56 (0.55, 0.57) | 0.051 (0.042, 0.061) |
aHF, high frequency; SDNN, 5-min standard deviation of normal-to-normal intervals; rMSSD, square root of the mean squared differences of successive normal-to-normal intervals; BC, black carbon; CO, carbon monoxide; NO, nitrogen monoxide; NO2, nitrogen dioxide.
b95% PI: 95% Posterior Interval.
cReference marker.