Table 3.

Average level (marginal effects) for referral, uptake and FP refills during the study phases^ℓ

Indicator	Pre-intervention (average level)	Intervention (average level)	Post-Intervention (average level)	Effect of the Intervention vs. Pre-intervention (Intervention - Pre-intervention)	Effect of the Post Intervention vs. intervention (Post-Intervention - intervention)
(i) Proportion (%) of FP usage among mothers attending PMTCT/PNC	64.9%	77.5%	79.8%	12.5%*	2.3%**
(ii) Proportion of mothers referred among those not using and in need FP	52.7%	83.2%	72.4%	30.4%**	−10.8%*
(iii) Proportion of FP uptake among mothers referred not using and in need of FP	47.2%	78.5%	67.7%	31.3%**	−10.8%*
(iv) Proportion(%) of FP refills among mothers receiving FP	33.5%	33.2%	39.5%	−0.3%	6.3%*

^ℓMarginal effects were calculated using Segmented regression of interrupted time-series models shown in Table 2

*significant at p < 0.05; ** significant at p < 0.001;