Table 4.
GAMM results of noise exposure and MW effects on ECG metrics during task execution. * (p < 0.05), ** (p < 0.01).
| ECG Metrics | Noise Exposure | MW | Intercept | |||||
|---|---|---|---|---|---|---|---|---|
| N75-S2 | N80-S1 | N85-S1 | LMW | MMW | HMW | |||
| SDNN (ms) | Estimate | −14.380 * | −9.834 | Reference | Reference | 1.806 | 1.847 | 78.858 |
| p | 0.016 | 0.100 | 0.755 | 0.761 | - | |||
| RMSSD (ms) | Estimate | −6.443 | −9.721 | 7.517 | 7.815 | 52.715 | ||
| p | 0.310 | 0.142 | 0.223 | 0.232 | - | |||
| pNN50 (%) | Estimate | −0.124 ** | −0.076 * | 0.018 | 0.036 | 0.302 | ||
| p | <0.001 | 0.029 | 0.600 | 0.302 | - | |||
| SDNN (ms) | Estimate | −4.541 | Reference | 9.834 | −1.806 | Reference | 0.041 | 70.825 |
| p | 0.451 | 0.100 | 0.755 | 0.995 | - | |||
| RMSSD (ms) | Estimate | 3.278 | 9.721 | −7.517 | 0.298 | 50.512 | ||
| p | 0.611 | 0.142 | 0.223 | 0.964 | - | |||
| pNN50 (%) | Estimate | −0.048 | 0.076 * | −0.018 | 0.018 | 0.244 | ||
| p | 0.172 | 0.029 | 0.600 | 0.595 | - | |||