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Table 2 Statistical comparison of outcomes (average annual rate) between pre and post implementation phases

From: Economic (gross cost) analysis of systematically implementing a programme of advance care planning in three Irish nursing homes

 

Pre-implementation (%)

Post-implementation (%)

One-sided z-test

Annual death rate (average)

30.3

27.6

z = 0.74, p = 0.23

Percentage of deaths in hospital (average per year)

22.9

8.4

z = 3.22, p = 0.001

Hospitalisation rate (average per year based on hospitalization incidents)

27.8

14.6

z = 3.96, p < 0.001

Hospitalisation rate (average per year based on hospital days)

0.54

0.36

z = 8.85, p < 0.001