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

Table 3 Results of carbon monoxide measurement during the first and second exposure tests

	Targeted concentration of CO (ppm)	Measured CO concentration, ppm (Mean ± S.D)	P value
First test	0	0.0 ± 0.1	<0.001
	30	33.2 ± 1.9
	70	72.4 ± 1.4
Second test	0	0.2 ± 0.3	<0.001
	30	30.2 ± 3.5
	50	48.8 ± 3.7

Data were expressed as means with standard deviation. The one-way Analysis of Variance (ANOVA) was used to compare CO means measured in the first and second tests

ISSN: 1347-4715