Interval estimates of segmented regression coefficients for changes in data for different time periods.

Figures are absolute numbers. Predicted mean at March 2009 are predicted values for data if phase 1 had not occurred. Change in level - step change in levels for data immediately after phase one (between February 2009 and March 2009). Trends refer to monthly changes in data. SA: Stroke Association; HES (Hospital Episode Statistics); A&E (accident and emergency); SITS (Safe Implementation of Thrombolysis in Stroke).