Table 5 Blood pressure results of participants after the first and second tests
From: Decreased blood pressure associated with in-vehicle exposure to carbon monoxide in Korean volunteers
|  | Blood pressure after the first test (n = 23) | Blood pressure after the second test (n = 20) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
33.2Â ppm in comparison with 0Â ppm | 72.4Â ppm in comparison with 0Â ppm | 30.2Â ppm in comparison with 0Â ppm | 48.8Â ppm in comparison with 0Â ppm | |||||||||
0Â ppm | 33.2Â ppm | Delta | 0Â ppm | 72.4Â ppm | Delta | 0Â ppm | 30.2Â ppm | Delta | 0Â ppm | 48.8Â ppm | Delta | |
Systolic pressure (mmHg) | 137.0 127.5-144.5 | 133.0 124.5-145.0 | −2.0 −8.5-7.5 | 137.0 127.5-144.5 | 132.0 124–139.5 | −5.0 −12.5-2.5 | 121.5 116.5-128.8 | 116.5 114.75-139.5 | −5.0 −9.0-3.5 | 121.5 116.5-128.8 | 120.5 113.8-133.0 | −3.0 −12.5-3.5 |
Diastolic pressure (mmHg) | 86.0 78.0-90.0 | 80.0 74.5-85.0 | −2.0 −8.5-2.0 | 86.0 78.0-90.0 | 81.0 71.5-86.5 | −6.0* −8.0- –1.0 | 74.5 64.5-85.0 | 70.0 63.8-79.3 | −3.0 −5.5-1.5 | 74.5 64.5-85.0 | 71.0 60.8-77.3 | −5.0* −7.0- –2.5 |