Fig. 3: Average breach percentage and intervention effect in case vs control Trusts over time.
From: Impact of primary to secondary care data sharing on care quality in NHS England hospitals
A&E breach percentage over time in Trusts acquiring data-sharing capabilities (n = 15, red solid line) vs synthetic controls (blue solid line) constructed from a group of Trusts with no data-sharing capabilities throughout the experimental period (n = 71). Average treatment effect in intervention Trusts (with standard deviation) shown with dotted line. Matching includes time-varying covariables at monthly resolution: (1) emergency department attendance; (2) bed occupancy; (3) case-mix; (4) deprivation characteristics of attending population; (5) nurses per bed. Matching performed within groups of Trusts with same NHS classification of size and function, prior to pooling results.
