Table 2

Plasma cotinine, urine cotinine plus 3-hydroxycotinine (COT + 3HC) and urine total 4-(methylnitrosoamino)-(3-pyridyl)1-butanol (NNAL) at baseline (BL), maximum concentration (Cmax) and maximum change (Δmax) following 1 h exposure to secondhand smoke in a vehicle

Plasma cotinine (ng/ml)Urine cotinine (ng/ml)Urine COT+3HC (nmol/mg creat)Urine total NNAL (pg/mg creat)
SubjectBLCmaxΔmaxBLCmaxΔmaxBLCmaxΔmaxBLCmaxΔmax
100.170.170.091.111.020.0020.0160.01401.271.27
20.070.200.130.192.522.320.0030.0150.01202.622.62
30.060.210.150.883.692.800.0160.0390.02304.054.05
40.050.130.080.211.040.830.0040.0140.01001.201.20
50.060.120.060.210.900.630.0020.0100.00804.924.92
600.280.280.412.922.510.0070.0320.0240.483.513.03
70.060.160.100.526.005.480.0080.0680.06002.232.23
80.040.120.070.481.100.610.0060.0100.0040.321.651.33
Average0.040.170.130.382.412.030.0060.0250.0190.102.682.58
SD0.030.060.070.251.791.660.0050.0200.0180.191.361.37
  • creat, creatinine.