Table 2

. | SFIB concentration (log_{10} cfu/100 ml). | |||
---|---|---|---|---|

Rainfall intensity . | Statistics . | E. coli
. | ENT . | CP . |

Heavy rainfall | 5% percentile | 2.4 | 2.3 | 1.5 |

Median | 3.7 | 4.1 | 2.1 | |

95% percentile | 4.8 | 5.1 | 4.3 | |

n | 38 | 38 | 38 | |

Light rainfall | 5% percentile | 1.7 | 2.1 | 1.5 |

Median | 2.8 | 3.6 | 2.1 | |

95% percentile | 3.8 | 4.1 | 3.2 | |

n | 14 | 14 | 14 | |

Little or no rainfall | 5% percentile | np | np | np |

Median | 2.4 | 2.0 | 1.8 | |

95% percentile | np | np | np | |

n | 8 | 8 | 8 | |

Kruskal–Wallis H-test | p-value | 0.001 | <0.001 | 0.053 |

. | SFIB concentration (log_{10} cfu/100 ml). | |||
---|---|---|---|---|

Rainfall intensity . | Statistics . | E. coli
. | ENT . | CP . |

Heavy rainfall | 5% percentile | 2.4 | 2.3 | 1.5 |

Median | 3.7 | 4.1 | 2.1 | |

95% percentile | 4.8 | 5.1 | 4.3 | |

n | 38 | 38 | 38 | |

Light rainfall | 5% percentile | 1.7 | 2.1 | 1.5 |

Median | 2.8 | 3.6 | 2.1 | |

95% percentile | 3.8 | 4.1 | 3.2 | |

n | 14 | 14 | 14 | |

Little or no rainfall | 5% percentile | np | np | np |

Median | 2.4 | 2.0 | 1.8 | |

95% percentile | np | np | np | |

n | 8 | 8 | 8 | |

Kruskal–Wallis H-test | p-value | 0.001 | <0.001 | 0.053 |

CP, *Clostridium perfringens* spores; ENT, enterococci; *n*, the number of samples; np, calculation not possible. See Figure 6 for the definition of heavy, light and little or no rainfall categories.

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