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This Atlas of Healthcare Variation domain gives rates for children aged 0–14 having surgery for:

  • tonsillectomy (removal of one or both tonsils)
  • ventilation tube (grommet) insertion.

The data was taken from the National Minimum Dataset. It presents rates of publicly funded procedures by district health board (DHB), over a 10-year period (2009–18), by age group, gender and ethnic group. Available data was not sufficiently robust to allow analysis of the indications for surgery.

As before, this Atlas domain does not include privately funded surgeries. If data from private hospitals was included, the procedure rates are likely to change most in the larger cities.

Where there is significant variation in rates, we can ask: is this variation is warranted and based on genuine differences between populations or are other factors at play?
The ideal surgery rate for both procedures is not known.

Surgical procedures

Published: 29 Oct 2021 Modified: 8 Nov 2021