Table 2.
Systolic and diastolic blood pressure and heart rate before and after the exposure to different noise levels.
| Noise level | Variable | Mean (SD) before exposure | Mean (SD) after exposure | P-value* |
|---|---|---|---|---|
| 85 dB | Systolic blood pressure (mmHg) | 117.38 (12.32) | 115.75 (11.09) | 0.564 |
| Diastolic blood pressure (mmHg) | 73.87 (10.78) | 74.12 (8.69) | 0.925 | |
| Heart rate (bpm) | 74.5 (8.33) | 71.5 (13.06) | 0.200 | |
|
| ||||
| 95 dB | Systolic blood pressure (mmHg) | 111.88 (7.52) | 112.12 (5.81) | 0.889 |
| Diastolic blood pressure (mmHg) | 69.37 (4.68) | 69.75 (4.97) | 0.623 | |
| Heart rate (bpm) | 74.5 (9.85) | 71.75 (9.43) | 0.147 | |
|
| ||||
| 105 dB | Systolic blood pressure (mmHg) | 109.37 (12.51) | 111.87 (9.81) | 0.445 |
| Diastolic blood pressure (mmHg) | 69 (6.5) | 71.5 (6.54) | 0.308 | |
| Heart rate (bpm) | 71.12 (9.26) | 70.87 (11.03) | 0.895 | |
*Paired t-test.