Figure 3From: Hospice utilization during the SARS outbreak in TaiwanDifferences between aggregate patient-days in hospice wards during each month of 2003 and those of the corresponding months of 2002, stratified by accreditation level. Difference = ((patient-days in a month of 2003) – (patient-days in a month of 2002))/(patient-days in a month of 2002).Back to article page