Visual indicator tested | Stratification | Odds ratio (95% confidence interval) | p Value for test for heterogeneity |
---|---|---|---|

*Opaque endocervical discharge. | |||

†Yellow endocervical discharge. | |||

‡Easily induced mucosal bleeding. | |||

NA=not applicable. | |||

OP* | Crude odds ratio | 2.9 (1.7–4.8) | NA |

Clinic | 3.0 (1.8–5.0) | 0.24 | |

YE† | Crude odds ratio | 2.8 (1.5–4.9) | NA |

Clinic | 2.8 (1.1–4.1) | 0.60 | |

BL‡ | Crude odds ratio | 2.3 (1.4–3.7) | NA |

Clinic | 2.4 (1.4–3.9) | 0.85 |