Impact of The Challenge Initiative on Public-Sector Family Planning Service Provision in Pakistan: Evidence from a Difference-in-Differences Analysis.

ITSA ( Figure 3 ) confirmed a highly significant and large immediate level increase (β 2 = 22,724; 95% CI [9,754, 35,695]; p=0.001), with a non-significant post-intervention slope change (β 3 = +318/month; 95% CI [−786, 1,423]; p=0.572).

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