Te Whatu Ora admits there are some errors in its official figures on emergency department waiting times.
Data showed a dramatic improvement in the EDs in the Northland, Southern and Taranaki regions which recorded near perfect waiting times in November and December.
The health agency's spokesperson Pete Watson told Morning Report the waiting time data has been merged from 20 different districts which collected it in different ways and it is as accurate as it can be at the moment.
Pete Watson says read all together, the data gives a good indication that pressure on the health system is not improving.
