Exposure variables | Data collection days/subject | Direct measurements | Regression results | |||
---|---|---|---|---|---|---|

Mean | s_{S}^{2} | ρ^{2} | α | β | ||

s_{S}^{2}, variance between measured individual mean job exposures; ρ^{2}, squared correlation coefficient; α, intercept; β, slope. | ||||||

*Regression results heavily influenced by one outlier. When he was excluded from the TEM and from the regression analyses, the ρ^{2} values for 1, 2, 3, and 4 days were: 0.08, 0.14, 0.13, 0.09. | ||||||

% time >90°* | 1 | 1.5 | 3.7 | 0.52 | −0.83 | 1.68 |

2 | 1.7 | 3.5 | 0.54 | −0.87 | 1.99 | |

3 | 1.6 | 3.8 | 0.54 | −1.29 | 2.16 | |

4 | 1.6 | 3.0 | 0.52 | −1.06 | 1.90 | |

% time >90° at least 5 s | 1 | 0.8 | 1.0 | 0.14 | 0.36 | 0.48 |

2 | 1.0 | 1.0 | 0.08 | 0.63 | 0.46 | |

3 | 0.9 | 0.7 | 0.07 | 0.58 | 0.36 | |

4 | 0.9 | 0.5 | 0.05 | 0.62 | 0.27 |