Covariates | Coefficent (SE) | P |
---|---|---|

Dependent variable = TNE nmol/mg creatinine (N = 351) R^{2} = 0.32 | ||

Intercept | −10.6 (7.8) | 0.175 |

Number of years using snuff daily | 1.3 (0.3) | <0.001 |

Tins per week | 4.8 (1.5) | 0.002 |

Mean daily dip duration (hours) | 7.2 (0.9) | <0.001 |

Covariates | exp(coeff) (95% CI) | P |

Dependent variable = total NNAL pmol/mg creatininea (N = 345) R^{2} = 0.49 | ||

Number of years using snuff daily | 1.02 (1.01–1.03) | <0.001 |

Tins per week | 1.13 (1.09–1.18) | <0.001 |

Mean daily dip duration (hours) | 1.13 (1.10–1.16) | <0.001 |

Constituent yield: NNK μg/g wet wt | 1.32 (1.16–1.51) | <0.001 |

Covariates | exp(coeff) (95% CI) | P |

Dependent variable = total NNN pmol/mg creatininea (N = 337) R^{2} = 0.40 | ||

Number of years using snuff daily | 1.02 (1.01–1.03) | 0.001 |

Tins per week | 1.10 (1.05–1.15) | <0.001 |

Mean daily dip duration (hours) | 1.14 (1.11–1.17) | <0.001 |

Constituent yield: NNN μg/g wet wt | 1.12 (1.06–1.17) | <0.001 |

NOTE: The model contains only the covariates that were significant in the final regression (Table 4) with a p-value < 0.05. For total NNN/creatinine, one subject with NNN >60 was excluded from the analysis.

^{a}Analyzed in the logarithmic scale.