Baseline | 12 months | Change^{*} | P value^{**} | |
---|---|---|---|---|

Mean (SD) | Mean (SD) | Mean (SD) | ||

PHQ score | ||||

Intervention (n = 95) | 14.5 (3.8) | 7.1 (5.4) | −7.3 (5.6) | <0.001 |

Active control (n = 62) | 14.6 (3.5) | 9.4 (5.9) | −5.2 (5.7) | 0.030 |

Usual care control (n = 71) | 14.2 (3.4) | 11.0 (5.2) | −3.2 (4.9) | – |

NNT^{***} | P value^{**} | |||

% | n | |||

Proportion recovered (PHQ improved by 50%) | ||||

Intervention (n = 95) | 61 | 3 | <0.001 | |

Active control (n = 62) | 44 | 5 | 0.034 | |

Usual care control (n = 71) | 24 | |||

Proportion achieving amelioration (PHQ <10) | ||||

Intervention (n = 95) | 68 | 3 | <0.001 | |

Active control (n = 62) | 58 | 5 | 0.020 | |

Usual care control (n = 71) | 39 |