Cesareans | Assisted deliveries | Antenatal care visits | ||||

IRR | 95% CI | IRR | 95% CI | IRR | 95% CI | |

Terrorist attack during the month | ||||||

Zero (ref) | 1 | 1 | 1 | |||

Single | 0.947 | 0.819 to 1.088 | 0.962** | 0.937 to 0.987 | 0.998 | 0.972 to 1.024 |

Multiple | 0.876 | 0.723 to 1.060 | 0.904*** | 0.861 to 0.950 | 0.927** | 0.881 to 0.974 |

Baseline trend | 1.009* | 1.002 to 1.017 | 1.001*** | 1.001 to 1.002 | 1.004*** | 1.003 to 1.004 |

Quadratic term for baseline trend | 0.999 | 0.999 to 1.000 | 0.999*** | 0.999 to 0.999 | 0.999*** | 0.999 to 0.999 |

Trend in attack phase | 0.982*** | 0.975 to 0.989 | 0.996*** | 0.995 to 0.997 | 0.996*** | 0.995 to 0.997 |

*p<0.05; **p<0.01; ***p<0.001.

†Results are derived from three separate models (one per outcome) that were fitted using negative binomial regression with robust variance estimators and fixed effects at the commune level. The exposure variable is categorical and expressed by the number of attacks per month per commune (with three categories). The same set of covariates was used in each model, two of which (the month and the percentage of missing observations) are not displayed here. The number of observations for cesareans is smaller because they are only performed in reference health facilities.

IRR, incidence rate ratio.