Variable | df | Coefficient | SE | t Value | P Value |
---|---|---|---|---|---|

Interrupted time series, within study sites | |||||

Intercept | 1 | 11.929 | 0.329 | 36.3 | <.0001 |

Time (secular trend) | 1 | 0.358 | 0.351 | 1.02 | .320 |

Change in level | 1 | −0.054 | 0.065 | −0.82 | .420 |

Change in slope | 1 | −0.138 | 0.069 | −2.00 | .060 |

Interrupted time series, intervention group vs control group | |||||

Intercept | 1 | 3.943 | 0.448 | 8.8 | <.0001 |

Time (secular trend) | 1 | −0.226 | 0.089 | −2.55 | .019 |

Change in level | 1 | 1.592 | 0.478 | 3.33 | .003 |

Change in slope | 1 | 0.242 | 0.094 | 2.58 | .018 |