Table 4

Result of difference-in-differences analysis showing the change in CVD emergency re-admissions per 100 000 population in Knowsley following the intervention relative to the control group, 2005–2015

CoefficientLower 95% CIUpper 95% CIP value
Treatment (Knowsley=1; control=0)−0.91−8.166.340.805
Period (post-intervention=1; pre-intervention=0)−6.98−
DiD estimator (treatment*period)−4.91−13.513.690.263
  • Model includes random intercept for LSOA, and fixed effects for percent of population aged 50+ years, percent female, percent unemployed and two spline terms for time (full model results are given in online supplementary file).

  • Model based on 97 Knowsley and 487 control LSOAs, and 6424 observations.

  • CVD, cardiovascular disease; DiD, difference-in-differences; LSOA, lower-layer super output area.