Figure 3.

Mean monthly societal costs (2013 values) for each of the three cost components associated with AD, by AD dementia severity

AD=Alzheimer’s disease; ANOVA=analysis of variance. *p Value for comparison between severity groups (ANOVA) of total monthly societal costs (value in italics above each column). Caregiver informal care costs (p<0.001) and patient healthcare costs (p=0.018) differed significantly between the groups, but patient social care costs did not. Note: supervision time is excluded from caregiver time in the caregiver informal care cost calculation. The value above each column is the mean total monthly societal costs, calculated for those who have data for all three cost components. Error bars represent 95% confidence intervals for mean total monthly societal costs. Each of the individual cost components is calculated for those with non-missing data (numbers with missing data were one [3%] in the mild AD dementia group, none in the moderate AD dementia group and two [2%] in the moderately severe/severe AD dementia group for each cost component). The n value given under each column is the total number of patients in each severity group.