Lung disease other than cancer† | Radiographic silicosis‡ | |||
---|---|---|---|---|

Concentration (mg/m^{3}) | All | <10 mg/m^{3}.y | All | <10 mg/m^{3}.y |

*Excess risk estimates are per 1000 workers and assume workers were exposed to a constant silica concentration for up to 45 years between the ages of 20 and 65. Annual risks are accumulated up to the age of 85. | ||||

†Poisson regression models with external standardisation using United States rates for lung disease other than cancer excluding pneumonia. Power model when not restricting observation on cumulative exposure; linear relative rate model when restricting observation to cumulative exposure <10 mg/m^{3}.y. | ||||

‡Poisson regression model using three age strata (0–39, 40–59, 60–85), and two calendar strata (1942–54, 1955–94). “Shape” model when not restricting observation on cumulative exposure; linear relative rate model when restricting observation to cumulative exposure <10 mg/m^{3}.y. | ||||

0.001 | 1.3 | 1.1 | 6.2 | 1.6 |

0.005 | 6.4 | 5.6 | 17.0 | 7.8 |

0.010 | 12.0 | 11.0 | 26.0 | 16.0 |

0.020 | 23.0 | 22.0 | 39.0 | 31.0 |

0.030 | 33.0 | 33.0 | 50.0 | 46.0 |

0.040 | 42.0 | 43.0 | 59.0 | 60.0 |

0.050 | 50.0 | 54.0 | 68.0 | 75.0 |

0.060 | 58.0 | 64.0 | 76.0 | 89.0 |

0.070 | 65.0 | 74.0 | 83.0 | 100.0 |

0.080 | 72.0 | 83.0 | 90.0 | 120.0 |

0.090 | 79.0 | 93.0 | 96.0 | 130.0 |

0.100 | 86.0 | 100.0 | 100.0 | 140.0 |

0.200 | 140.0 | 190.0 | 150.0 | 260.0 |