Table of contents

  • Preliminary material
    • Title and verso pages
    • Contents
    • Acknowledgments
    • Abbreviations
    • Executive summary
      • Investigation of recent suicide data
      • Future statistics on suicide
  • Body section
    • 1 Introduction
      • 1.1 Overview
      • 1.2 Background
      • 1.3 Note on terms
      • 1.4 Structure of the report
    • Part A-Background
    • 2 Suicide statistics in Australia
      • 2.1 Number of suicide deaths recorded by year
      • 2.2 Trends in suicide rates
      • 2.3 Methods of suicide
      • 2.4 Summary
    • 3 Production of suicide statistics
      • 3.1 Overview
      • 3.2 Coronial processes
        • 3.2.1 Reportable deaths
        • 3.2.2 Opening a case
        • 3.2.3 Case closure and certification
      • 3.3 NCIS processes
        • 3.3.1 Overview
        • 3.3.2 Coding and classification
      • 3.4 ABS processes
    • 4 Potential sources of error
      • 4.1 Before the coroner system
      • 4.2 Coroner system
        • 4.2.1 Time taken to reach decisions
        • 4.2.2 The way decisions are recorded
        • 4.2.3 Criteria for deciding 'suicide'
      • 4.3 NCIS
        • 4.3.1 Existence of an NCIS record
        • 4.3.2 Extent of information in an 'open' NCIS record
        • 4.3.3 Extent of information in a 'closed' NCIS record
        • 4.3.4 Quality assurance and documentation
      • 4.4 Use of the NCIS
        • 4.4.1 Timing of use of NCIS to obtain suicide statistics
        • 4.4.2 Criteria used to assign a case in NCIS as 'suicide'
      • 4.5 ABS processes
        • 4.5.1 Timing of use of the NCIS by the ABS
        • 4.5.2 Criteria used by the ABS to assign a case in NCIS as 'suicide'
      • 4.6 The impact of timing
    • Part B-Investigation
    • 5 Methods and data
      • 5.1 Overview
      • 5.2 Methods
        • 5.2.1 Case extract from the NCIS
        • 5.2.2 Overview of methods
        • 5.2.3 Compare ISH according to two criteria based on the NCIS
        • 5.2.4 ISH deaths according to NCIS and ABS mortality data
        • 5.2.5 Checking and processing of the NCIS extract to support later analysis
        • 5.2.6 NCIS records without Underlying Cause of Death codes
        • 5.2.7 Assignment of ISH status using all information in NCIS
        • 5.2.8 Feasibility test of manual recoding
        • 5.2.9 Factors contributing to differences in assignment as ISH
        • 5.2.10 Revised estimates of ISH deaths
    • 6 Findings: describing the NCIS data
      • 6.1 Introduction and overview
      • 6.2 ISH according to two criteria based on the NCIS
        • 6.2.1 Introduction
        • 6.2.2 Overview of groups
        • 6.2.3 Assessment of six groups
        • 6.2.4 Summary of analysis of groups
      • 6.3 Comparison of ISH deaths according to NCIS data and ABS mortality data
        • 6.3.1 Use of logically equivalent criteria to identify ISH cases in the ABS mortality data and the NCIS extract
      • 6.4 NCIS records without Underlying Cause of Death codes
        • 6.4.1 Open cases
        • 6.4.2 Month of death
        • 6.4.3 Timing of NCIS record creation
        • 6.4.4 Timing of NCIS case closure by coroner
        • 6.4.5 Jurisdiction
    • 7 Findings: explaining differences and improving estimates
      • 7.1 Introduction and overview
      • 7.2 Assignment of ISH status using all information in the NCIS
        • 7.2.1 Staged case identification
        • 7.2.2 Feasibility test of manual recoding
      • 7.3 Explaining differences
        • 7.3.1 Duration from death to closure of case by coroner
        • 7.3.2 Duration from closure of case by coroner to publication
        • 7.3.3 Jurisdiction
        • 7.3.4 Is misclassification of ISH related to annual data processing?
        • 7.3.5 Characteristics of cases assigned Underlying Cause of Death codes for ISH
        • 7.3.6 Summary
      • 7.4 Revised estimates of ISH
    • 8 Discussion
      • 8.1 Revised estimates of ISH in Australia
      • 8.2 Misclassification of ISH
      • 8.3 Sources of error in estimates of ISH
        • 8.3.1 Time-related misclassification
        • 8.3.2 Ambiguity in identification of deaths as 'suicide'
        • 8.3.3 State-specific differences in the content of NCIS records
      • 8.4 Impediments and solutions
        • 8.4.1 Missing values of Underlying Cause of Death in the NCIS
        • 8.4.2 Record linkage
      • 8.5 Changes to ABS process
      • 8.6 Conclusions
        • 8.6.1 Completeness
        • 8.6.2 Reliability of trends
        • 8.6.3 Timeliness
  • End matter
    • Appendix
    • References
    • List of tables
    • List of figures