Table 2

Estimating hospitalised injury incidence: number of injury cases retained for two options of case selection ordering using New Zealand hospital discharge data (2000–2014)

Identification of readmissions
Option 1: p rior to excluding SSEDOption 2: a fter excluding SSED
Injury discharges1 229 7721 229 772
 Number of readmissions identified (option 1)101 357
Exclude SSED−365 114−365 114
 Number of readmissions identified (option 2)64 472
Exclude non-SSED readmissions−95 196−64 472
Cases retained769 462800 186
  • SSED, short-stay emergency department.