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Table 6 Difference-in-difference analysis on patients presenting to NHS hospital sites with alcohol teams compared to NHS hospital trusts without - Estimated intervention effects for emergency hospital activity in the year before and the year after diagnosis (as mean per patient)

From: The impact of alcohol care teams on emergency secondary care use following a diagnosis of alcoholic liver disease - a national cohort study

  Hospital trusts with an alcohol team (n = 1025) Hospital trusts with no alcohol team (n = 1245)   
One year before diagnosis (SD) One year after diagnosis (SD) Difference (SE) One year before diagnosis (SD) One year after diagnosis (SD) Difference (SE) Difference in difference (95 % CI) P-value
Emergency admissions (all) 1.628 (1.769) 1.375 (2.496) −0.254 (0.069) 1.696 (1.945) 1.340 (2.390) −0.357 (0.062) 0.103 (−0.079 to 0.285) 0.267
Emergency admissions (alcohol related) 1.270 (1.390) 1.057 (2.077) −0.214 (0.060) 1.296 (1.538) 1.072 (2.157) −0.223 (0.055) 0.010 (−0.150 to 0.169) 0.906
Emergency department attendances 1.693 (3.834) 1.736 (4.864) 0.043 (0.098) 1.589 (2.917) 1.601 (4.099) 0.012 (0.089) 0.031 (−0.229 to 0.291) 0.816
  1. Data are mean number per patient (standard deviation) and difference (standard error). P-value is from the linear mixed model. CI confidence interval
  2. Note: The ‘one year before diagnosis’ field includes the index admission which accounts for the mean number of emergency admissions being above one in this time period