Citation: Ministry of Health. 2012. Hospital Events 2008/09 and 2009/10. Wellington:Ministry

Hospital Events

2008/09 and 2009/10

Citation: Ministry of Health. 2012. Hospital Events 2008/09 and 2009/10. Wellington:Ministry of Health.

Published in November 2012 by the
Ministry of Health
PO Box 5013, Wellington 6145, New Zealand

ISBN 978-0-478-40209-4 (print)
ISBN 978-0-473-40210-0 (online)
HP 5584

This document is available at

This work is licensed under the Creative Commons Attribution 4.0 International licence. In essence, you are free to: share ie, copy and redistribute the material in any medium or format; adapt ie, remix, transform and build upon the material. You must give appropriate credit, provide a link to the licence and indicate if changes were made.

Acknowledgements

Many people have assisted in the production of this publication. In particular, the Ministry of Health thanks the peer reviewers for their valuable contribution.

Source

Hospital data for this publication are sourced from the National Minimum Dataset held by the Ministry of Health.

Disclaimer

The purpose of this publication is to inform discussion and assist policy development. The opinions expressed in the publication do not necessarily reflect the official views of the Ministry of Health.

All care has been taken in the production of this publication. The data are deemed to be accurate at the time of publication, but may be subject to slight changes over time as further information is received. It is advisable to check the current status of figures given here with the Ministry of Health before quoting or using them in further analysis.

National collection, coding and collation of hospital event data is a complex process. This is because the information in the National Minimum Dataset cannot be finalised until data have become available from all hospitals that report to the Ministry of Health. In addition, several steps are required to ensure the final information is of good quality.

The Ministry of Health makes no warranty, expressed or implied, nor assumes any legal liability or responsibility for the accuracy, correctness, completeness or use of the information or data in this publication. Further, the Ministry of Health shall not be liable for any loss or damage arising directly or indirectly from the information or data presented in this publication.

The Ministry of Health welcomes comments and suggestions about this publication.

Hospital Events 2008/09 and 2009/101

Hospital Events 2008/09 and 2009/101

Contents

Key points

Introduction

Purpose

Data sources, data quality and timing issues

Hospital discharges

Overview

Sex

Age

Ethnicity

Deprivation

District health board region

Selected diagnoses

Length of stay and bed days

Inpatients and day cases

Hospital procedures

Overview

Sex

Age

Ethnicity

Deprivation

District health board region

Selected procedures

Length of stay

Inpatients and day cases

Hospital discharges involving injury and poisoning

Overview

Sex

Age

Ethnicity

Deprivation

District health board region

Selected causes

Length of stay and bed days

Inpatients and day cases

Further hospital-related information

Electronic version of this Hospital Events publication

Other hospital-related Ministry of Health publications

Other publications containing data from the National Minimum Dataset

Other hospital-related publications

Population and demographic data

Hospital data available from the Ministry of Health

Additional information available from the Ministry of Health

Definitions

Technical notes

Rate calculations

Confidence intervals

Procedure codes

References

List of tables

Table 1:Hospital discharges by hospital type and funding type, 2004/05–2009/10

Table 2:Hospital discharges and age-standardised rates by sex, 1995/96–2009/10

Table 3:Publicly funded hospital discharges by five-year age group and sex, 2009/10

Table 4:Privately funded hospital discharges by five-year age group and sex, 2009/10

Table 5:Publicly funded hospital discharges and age-standardised rates by ethnicity, 1995/96–2009/10

Table 6:Publicly funded hospital discharges and age-standardised rates by ethnicity and sex, 1995/96–2009/10

Table 7:Publicly funded hospital discharges by DHB region, 2009/10

Table 8:Publicly funded hospital discharges by DHB region, Māori population, 2009/10

Table 9:Age-standardised publicly funded hospital discharge rates for selected diagnoses by sex and ethnicity, 2009/10

Table 10:Age-standardised privately funded hospital discharge rates for selected diagnoses by sex, 2009/10

Table 11:Average length of stay and total bed days by sex and ethnicity, publicly funded hospital discharges, 1995/96 and 2009/10

Table 12:Average length of stay and total bed days by sex, privately funded hospital discharges, 2004/05 and 2009/10

Table 13:Average length of stay and total bed days by DHB region, total population, publicly funded hospital discharges, 2009/10

Table 14:Average length of stay and total bed days by DHB region, Māori population, publicly funded hospital discharges, 2009/10

Table 15:Hospital discharges by patient type, 1995/96–2009/10

Table 16:Hospital procedures and age-standardised rates by sex, 1995/96–2009/10

Table 17:Publicly funded hospital procedures by five-year age group and sex, 2009/10

Table 18:Privately funded hospital procedures by five-year age group and sex, 2009/10

Table 19:Publicly funded hospital procedures and age-standardised rates by ethnicity, 1995/96–2009/10

Table 20:Publicly funded hospital procedures and age-standardised rates by ethnicity and sex, 1995/96–2009/10

Table 21:Publicly funded hospital procedures by DHB region, 2009/10

Table 22:Publicly funded hospital procedures by DHB region, Māori population, 2009/10

Table 23:Age-standardised publicly funded hospital procedure rates for selected procedures by sex and ethnicity, 2009/10

Table 24:Age-standardised privately funded hospital procedure rates for selected procedures by sex, 2009/10

Table 25:Average length of stay and total bed days by sex and ethnicity, publicly funded hospital procedures, 1995/96 and 2009/10

Table 26:Average length of stay and total bed days by sex and ethnicity, privately funded hospital procedures, 2004/05 and 2009/10

Table 27:Average length of stay by ethnicity and DHB region, publicly funded hospital procedures, 2009/10

Table 28:Hospital procedures by patient type, 1995/96–2009/10

Table 29:Hospital discharges involving injury and poisoning and age-standardised rates by sex, 1995/96–2009/10

Table 30:Hospital discharges involving injury and poisoning by five-year age group and sex, 2009/10

Table 31:Hospital discharges involving injury and poisoning and age-standardised rates by ethnicity, 1995/96–2009/10

Table 32:Hospital discharges involving injury and poisoning and age-standardised rates by ethnicity and sex, 1995/96–2009/10

Table 33:Hospital discharges involving injury and poisoning by DHB region, 2009/10

Table 34:Hospital discharges involving injury and poisoning by DHB region, Māori population, 2009/10

Table 35:Age-standardised rates for hospital discharges involving injury and poisoning for selected causes by sex and ethnicity, 2009/10

Table 36:Average length of stay and total bed days by sex and ethnicity, hospital discharges involving injury and poisoning, 1995/96 and 2009/10

Table 37:Average length of stay and total bed days by DHB region, total population, hospital discharges involving injury and poisoning, 2009/10

Table 38:Average length of stay and total bed days by DHB region, Māori population, hospital discharges involving injury and poisoning, 2009/10

Table 39:Hospital discharges involving injury and poisoning by patient type,
1995/96–2009/10

Table N-1:Population data, 2009/10

Table N-2:World Health Organization world standard population

Table N-3:ICD-10-AM 6th Edition procedure codes for selected procedures

List of figures

Figure 1:Number of hospital discharges by hospital type and funding type, 2009/10

Figure 2:Number of patients discharged from hospital by funding type, 2009/10

Figure 3:Age-standardised hospital discharge rates by sex, 1999/00–2009/10

Figure 4:Age-specific publicly funded hospital discharge rates by sex, 2009/10

Figure 5:Age-specific privately funded hospital discharge rates by sex, 2009/10

Figure 6:Age-standardised publicly funded hospital discharge rates by ethnicity, 1999/00–2009/10

Figure 7:Age-specific publicly funded hospital discharge rates by ethnicity, 2009/10

Figure 8:Age-specific publicly funded hospital discharge rates by ethnicity, males, 2009/10

Figure 9:Age-specific publicly funded hospital discharge rates by ethnicity, females, 2009/10

Figure 10:Publicly and privately funded hospital discharge rates by deprivation quintile, 2009/10

Figure 11:Publicly funded hospital discharge rates by ethnicity and deprivation quintile, 2009/10

Figure 12:Publicly funded hospital discharge rates by DHB region, 2009/10

Figure 13:Publicly funded hospital discharge rates by DHB region, 2009/10

Figure 14:Publicly funded hospital discharge rates by DHB region, Māori population, 2009/10

Figure 15:Publicly funded hospital discharge rates by DHB region, Māori population, 2009/10

Figure 16:Publicly funded hospital discharges by sex and ICD chapter, 2009/10

Figure 17:Privately funded hospital discharges by sex and ICD chapter, 2009/10

Figure 18:Age-specific publicly funded hospital discharge rates by patient type, 2009/10

Figure 19:Age-specific privately funded hospital discharge rates by patient type, 2009/10

Figure 20:Age-specific publicly funded hospital discharge rates by ethnicity, inpatients, 2007/08

Figure 21:Age-specific publicly funded hospital discharge rates by ethnicity, day cases, 2009/10

Figure 22:Publicly funded hospital discharges by deprivation quintile and patient type, 2009/10

Figure 23:Privately funded hospital discharges by deprivation quintile and patient type, 2009/10

Figure 24:Age-standardised hospital procedure rates by sex, 1999/00–2009/10

Figure 25:Age-specific publicly funded hospital procedure rates by sex, 2009/10

Figure 26:Age-specific privately funded hospital procedure rates by sex, 2009/10

Figure 27:Age-standardised hospital procedure rates by ethnicity, 1999/00–2009/10

Figure 28:Age-specific publicly funded hospital procedure rates by ethnicity, 2009/10

Figure 29:Age-specific publicly funded hospital procedure rates by ethnicity, males, 2009/10

Figure 30:Age-specific publicly funded hospital procedure rates by ethnicity, females, 2009/10

Figure 31:Publicly and privately funded procedure rates by deprivation quintile, 2009/10

Figure 32:Publicly funded hospital procedure rates by ethnicity and deprivation quintile, 2009/10

Figure 33:Publicly funded hospital procedure rates by DHB region, 2009/10

Figure 34:Publicly funded hospital procedure rates by DHB region, 2009/10

Figure 35:Publicly funded hospital procedure rates by DHB region, Māori population, 2009/10

Figure 36:Publicly funded hospital procedure rates by DHB region, Māori population, 2009/10

Figure 37:Publicly funded hospital procedures by sex and ICD chapter, 2009/10

Figure 38:Privately funded hospital procedures by sex and ICD chapter, 2009/10

Figure 39:Average length of stay, hospital procedures, 2009/10

Figure 40:Age-specific publicly funded hospital procedure rates by patient type, 2009/10

Figure 41:Age-specific privately funded hospital procedure rates by patient type, 2009/10

Figure 42:Age-specific publicly funded hospital procedure rates by ethnicity, inpatients, 2009/10

Figure 43:Age-specific publicly funded hospital procedure rates by ethnicity, day cases, 2009/10

Figure 44:Publicly funded hospital procedures by deprivation quintile and patient type, 2009/10

Figure 45:Privately funded hospital procedures by deprivation quintile and patient type, 2009/10

Figure 46:Age-standardised hospital discharge rates involving injury and poisoning by sex, 1995/96–2009/10

Figure 47:Age-specific rates for hospital discharges involving injury and poisoning by sex, 2009/10

Figure 48:Age-standardised rates for hospital discharges involving injury and poisoning by ethnicity, 1999/00–2009/10

Figure 49:Age-specific rates for hospital discharges involving injury and poisoning by ethnicity, 2009/10

Figure 50:Age-specific rates for hospital discharges involving injury and poisoning by ethnicity, males, 2009/10

Figure 51:Age-specific rates for hospital discharges involving injury and poisoning by ethnicity, females, 2009/10

Figure 52:Rates for hospital discharges involving injury and poisoning by deprivation quintile, 2009/10

Figure 53:Rates for hospital discharges involving injury and poisoning by ethnicity and deprivation quintile, 2009/10

Figure 54:Hospital discharges involving injury and poisoning by DHB region, 2009/10

Figure 55:Hospital discharges involving injury and poisoning by DHB region, 2009/10

Figure 56:Hospital discharges involving injury and poisoning by DHB region, Māori population, 2009/10

Figure 57:Hospital discharges involving injury and poisoning by DHB region, Māori population, 2009/10

Figure 58:Average length of stay by deprivation quintile, hospital discharges involving injury and poisoning, 2009/10

Figure 59:Total bed days by deprivation quintile, hospital discharges involving injury and poisoning, 2009/10

Figure 60:Age-specific rates for hospital discharges involving injury and poisoning by patient type, 2009/10

Figure 61:Age-specific rates for hospital discharges involving injury and poisoning by ethnicity, inpatients, 2009/10

Figure 62:Age-specific rates for hospital discharges involving injury and poisoning by ethnicity, inpatients, 2009/10

Figure 63:Hospital discharges involving injury and poisoning by deprivation quintile and patient type, 2009/10

Key points

Overview

Hospital discharges

• There were more than 1.1 million discharges from New Zealand hospitals in 2009/10. This equates to 21,794.8 publicly funded hospitalisations per 100,000 people and 1407.7 privately funded hospitalisations per 100,000 people (age-standardised).
• There were 310 more publicly funded hospitalisations and 147 fewer privately funded hospitalisations per 100,000 people in 2009/10 compared with 2008/09.

Hospital procedures

• More than 1.5 million procedures were performed in New Zealand hospitals in 2009/10. Relative to the population, there were 28,617.5 publicly funded procedures and 2926.8 privately funded procedures per 100,000 people (age-standardised).
• There were 1449 more publicly funded procedures and 336 fewer privately funded procedures per 100,000 people in 2009/10 compared with 2008/09.

Hospital discharges involving injury and poisoning

• There were 180,042discharges involving injury and poisoning from New Zealand hospitals in 2009/10. This equates to 3595.1 hospitalisations per 100,000 people (age-standardised).
• There were 87 more hospitalisations involving injury and poisoning per 100,000 people in 2009/10 compared with 2008/09.

Sex

• In 2009/10 there were:

–79 male hospitalisations for every 100 female hospitalisations

–80 male procedures for every 100 female procedures

–112 male hospitalisations involving injury and poisoning for every 100 female hospitalisations.

• In 2009/10, females had higher age-standardised rates of hospital discharges and hospital procedures compared with males, while males had a higher rate of hospitalisations involving injury and poisoning compared with females.

Age

• Generally, older patients (aged 65 years and over) had higher rates of hospital discharges, procedures and hospitalisations involving injury and poisoning compared with other age groups in 2009/10.
• Young patients aged 0–4 years and females aged 15–49 years also had higher hospitalisation and procedure rates compared with other age groups in 2009/10.

Ethnicity

• In 2009/10 Māori accounted for:

–16 out of every 100 publicly funded hospital discharges

–15 out of every 100 publicly funded hospital procedures

–15 out of every 100 hospitalisations involving injury and poisoning.

• Māori had higher rates of publicly funded hospital discharges, hospital procedures and hospitalisations involving injury and poisoning compared with non-Māori in each year from 1995/96 to 2009/10.

Deprivation

• As deprivation increased, rates of publicly funded hospital discharges, procedures and hospitalisations involving injury and poisoning increased in 2009/10.
• As deprivation increased, rates of privately funded hospital discharges and procedures decreased in 2009/10.
• At all levels of deprivation Māori had higher rates of publicly funded hospital discharges, hospital procedures and hospitalisations involving injury and poisoning compared with non-Māori in 2009/10.

District health board region

• Over half of North Island DHB regions and one South Island DHB region had significantly higher hospitalisation rates compared to the New Zealand rate in 2009/10.
• The majority of North Island DHB regions and half of South Island DHB regions had significantly higher procedure rates compared to the national rate in 2009/10.
• Nearly two-thirds of North Island DHB regions had significantly higher rates for hospitalisations involving injury and poisoning compared to the New Zealand rate in 2009/10.

Selected diagnoses and procedures

• For most selected diagnoses (including those for hospitalisations involving injury and poisoning), male hospitalisation rates were higher than female rates in 2009/10.
• For the majority of selected procedures and selected diagnoses (including those for hospitalisations involving injury and poisoning), Māori had higher rates compared with non-Māori in 2009/10.

Length of stay and bed days

• The average length of stay increased for hospital discharges and decreased for both procedures and hospitalisations involving injury and poisoning from 1995/96 to 2009/10.
• On average, non-Māori hospitalisations (including those involving injury and poisoning) were longer than those of Māori in 2009/10. However, for hospital procedures, Māori spent slightly longer (on average) in hospital compared with non-Māori.
• Compared with publicly funded patients, the average length of stay was:

–longer for privately funded hospitalisations in 2009/10

–shorter for privately funded procedures in 2009/10.

• From 1995/96 to 2009/10 the total number of bed days increased by:

–nearly 2 million (or 56.9%) for publicly funded hospital discharges

–almost 400,000 (or 57.5%) for hospitalisations involving injury and poisoning.

• The total number of bed days increased byover 80,000 (or 20.9%) for privately funded hospitalisations from 2004/05 to 2009/10.

Inpatients and day cases

• In 2009/10, day cases accounted for:

–one out of every three publicly funded hospital discharges

–one out of every three publicly funded procedures

–one out of every four hospitalisations involving injury and poisoning.

• Day cases accounted for more than half of all:

–privately funded hospital discharges (56.0%)

–privately funded hospital procedures (54.7%) in 2009/10.

Hospital Events 2008/09 and 2009/101

Introduction

Purpose

The purpose of thisHospital Events publication series is to inform discussion and assist in future policy development.Readership of this publication is wideranging, and its contents reflect this, aiming to meet the needs of all interested parties.

This publication contains statistical information about events[1] in New Zealand hospitals, including:

• discharges (hospitalisations) from publicly and privately funded facilities
• procedures performed in publicly and privately funded facilities
• discharges involving injury and poisoning.

While this publication focuses on hospital events that occurred in the 2008/09 and 2009/10 years, it also contains time trends from 1995/96 onwards.

Data sources, data quality and timing issues

The National Minimum Dataset

The data in this publication is from the National Minimum Dataset (NMDS), a national collection of public and private hospital discharge information (including clinical information) for inpatients and day patients. The NMDS collects and stores unit record data. It is important to note that hospital events recorded in the NMDS represent individual events rather than individual people. The number of events will be higher than the number of people, because one person can contribute numerous unique hospital events to the dataset.