Maternity - Women giving birth by number of previous births (parity) 2008–2017

Ministry of Health


Parity is defined as 'to indicate the number of pregnancies a woman had that have each resulted in the birth of an infant capable of survival'.
Note: parity data is only available for women registered with an LMC or a DHB primary maternity service.


Deprivation quintiles are based on the area of residence for the woman or baby. They range from 1 (least deprived) to 5 (most deprived), according to the 2006 New Zealand Deprivation Index. Approximately equal numbers of the population reside in areas associated with each of the five deprivation quintile areas.

Data calculation/treatment

This publication uses prioritised ethnicity, whereby each person represented in the data is allocated to a single ethnic group using the priority system Māori > Pacific peoples > Asian > European > Other. The aim of prioritisation is to ensure that where it is necessary to assign people to a single ethnic group, ethnic groups that are small or important in terms of policy are not swamped by the European ethnic group.


While the data is collected for 'women' it is important to note that it actually includes all people who have given birth and that the data may include some transgender people.

Data provided by

Ministry of Health

Dataset name

Report on Maternity 2017


How to find the data

At URL provided, select 'Report on Maternity 2017 - tables (XLSX, 347 KB)' file.

Import & extraction details

File as imported: Report on Maternity 2017

From the dataset Report on Maternity 2017, this data was extracted:

  • Sheet: Parity
  • Range: B8:M17
  • Provided: 120 data points

Dataset originally released on:

April 11, 2019

Purpose of collection

To provide annual health statistics about women giving birth, their pregnancy and childbirth experience and the characteristics of live-born babies in New Zealand.

Method of collection/Data provider

Population data for rate calculations was provided by Stats NZ