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Table 4 Difference-in-difference analysis on male patients presenting to NHS hospital trusts 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 sites with an alcohol team (n = 3,290)

Hospital sites with no alcohol team (n = 3,057)

  

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)

1.696 (1.800)

1.398 (2.412)

−0.298 (0.040)

1.717 (1.994)

1.401 (2.435)

−0.315 (0.042)

0.018 (−0.095 to 0.131)

0.758

Emergency admissions (alcohol related)

1.340 (1.490)

1.114 (2.096)

−0.226 (0.035)

1.316 (1.578)

1.129 (2.146)

−0.187 (0.037)

−0.039 (−0.139 to 0.060)

0.442

Emergency department attendances

1.516 (3.353)

1.763 (5.207)

0.247 (0.060)

1.144 (2.518)

1.343 (3.613)

0.199 (0.062)

0.048 (−0.120 to 0.217)

0.575

  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