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Table 6 COHb levels of the participants who underwent the first and second tests

From: Decreased blood pressure associated with in-vehicle exposure to carbon monoxide in Korean volunteers

Targeted concentration of CO (ppm)

First test, % (n)

Second test, % (n)

Total, % (n)

P value

0

1.3 (14)

1.0-1.5

1.1 (14)

1.0-1.4

1.2 (28)

1.0-1.4

<0.001

30

1.8 (14)

1.4-2.2

1.5 (14)

1.4-1.6

1.7 (28)

1.4-1.9

50

-

2.2 (14)

2.0-2.4

2.2 (14)

2.0-2.4

70

2.5 (14)

2.3-2.8

-

2.5 (14)

2.3-2.8

  1. Wilcoxon’s signed-rank test was used to analyze the COHb levels of the participants who underwent the first and second tests
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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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