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Antipsychotic prescribing in New Zealand between 2008 and 2015
Sam Wilkinson1, Roger T Mulder2
1Canterbury District Health Board, Christchurch.
Aim:
To examine antipsychotic prescribing trends in New Zealand adults from 2008-2015.
Methods:
Antipsychotic prescribing data was sourced via the Ministry of Health. Data were examined by year, type of drug, ethnicity, gender, age and location of district health board.
Results:
All individuals dispensed an antipsychotic were included. Rates of antipsychotic prescribing rose from 1.88% to 2.81%, an increase of 49% over the seven years. Most of the increase was in atypical antipsychotics (particularly quetiapine and olanzapine), which accounted for 82% of total antipsychotics in 2015. Māori were prescribed more antipsychotics than non-Māori. Asian people had the lowest rate of prescribing (0.86%). The highest rate of antipsychotic use was in European females aged 65 plus.
Conclusion:
Rates of antipsychotic prescription are increasing. Most of this change is in prescribing atypical antipsychotics. Young Māori males and elderly European females are most likely to receive antipsychotics.
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