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Correlation between HRV value per hour and mean noise measurements per hour by group of workers with Pearson's correlation test.
| Welders' exposure time N = 39 | Airport workers ‘exposure time N = 37 | |
|---|---|---|
| Pearson's correlation coefficient | Pearson's correlation test | |
| LF | r = 0.62* | r = 0.12 |
| HF | r = 0.357* | r = 0.073 |
| LF/HF | r =-0.06 | r = 0.0902 |
| SDNN | r = 0.48* | r = 0.03205 |
| RMSSD | r = 0.238 | r = 0.1282 |
r, Pearson's correlation coefficient.
*p < 0.05 relation is significant at 0.05 levels.
