Table 1.

Statistics on urinary cotinine (nmol/mg creatinine) and total NNAL (pmol/mg creatinine) for categories of CPD, including number of subjects, arithmetic mean, geometric mean, and geometric SD

CPDn*Cotinine
Total NNAL
AMGMGSDAMGMGSD
MalesOverall21621.417.02.232.131.751.96
10289.66.82.660.990.742.30
11-208021.517.72.132.071.791.73
21-307125.522.51.702.342.041.71
31+3722.018.22.022.722.351.73
FemalesOverall12123.215.82.852.091.482.62
10327.85.02.820.770.522.55
11-204025.019.92.182.151.762.02
21-303930.626.71.772.602.361.62
31+1036.632.71.784.113.501.94
  • NOTE: Data from four clinical trials of smokers (see text).

    Abbreviations: AM, arithmetic mean; GM, geometric mean; GSD, geometric SD.

  • * Omits two males with extreme cotinine measurement of 0.17 and 159.4 nmol/mg creatinine, one subject who smoked 100 CPD, and subjects with missing data.