Motor Vehicle Crashes in New Zealand 2011 - Ministry of Transport

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166 Motor Vehicle Crashes in New Zealand 2011 Contents TABLES Table 1 New Zealand Injury Prevention Strategy serious injury outcome indicators 168 FIGURES Figure 1 Motor vehicle traffic crash fatal injury age standardised rate (M12) 168 Figure 2 Motor vehicle traffic crash serious non-fatal injury age standardised rate (M02) 169 Figure 3 Motor vehicle traffic crash serious (fatal and non-fatal) injury age standardised rate (M22) 169
NEW ZEALAND INJURY PREVENTION STRATEGY SERIOUS INJURY OUTCOME INDICATORS 167 NOTES 1. The New Zealand Injury Prevention Strategy (NZIPS) The NZIPS is an expression of the government’s commitment to working with organisations and groups in the wider community to improve the country’s injury prevention performance. The Strategy’s vision is “a safe New Zealand, becoming injury free”. (For further details see www.nzips.govt.nz.) ‘Motor vehicle traffic crashes’ is one of the six priority areas identified in the strategy. 2. NZIPS serious injury indicators Official serious injury outcome indicators have been developed for each of the six priority areas as the main means of measuring performance in reducing injury. Chart books with the full set of indicators can be found by visiting the Statistics NZ website: www.statistics.govt.nz and searching for NZIPS serious injury indicators Several of the official NZIPS indicators for motor vehicle traffic crashes are presented in this section. 3. What is a serious injury? The definition of serious injury adopted for the official NZIPS indicators is: serious injuries are those that result in death or an admission to hospital that is associated with at least a 6 percent chance of death. The methods by which cases of fatal and serious non-fatal injury are identified are described briefly in The New Zealand Injury Prevention Strategy Injury Indicators: Technical Report. The technical report can be found on the Statistics NZ website. 4. The graphs Time period Where possible, the period presented for serious non-fatal injuries is 1994 to 2010. For fatal injuries, the period presented is 1994 to 2008. Because many cases of injury-related death are required to be reviewed by a Coroner, there is a time delay in the recording of the cause of fatal injury. Hence, 2008 is the most recent year available for the mortality data. the number of deaths and hospitalisations attributable to injury. Readers should exercise caution if commenting on trends that include indicator values based on both ICD-9 and ICD-10 coded data. For this reason, the bars on the graphs have been shaded differently to highlight the change. Intermediate shading has been used for the bars for 1999 for indicators based on hospitalisation data, because 1999 was a transitional year when both ICD-9 and ICD-10 coding systems were used. Baseline The ‘baseline’ provides a point from which to compare the frequencies and rates of injuries. It is the average count or rate of injury for the three years leading up to the launch of NZIPS (2001-2003). Confidence intervals Each bar on each chart has confidence intervals shown as vertical lines. These give an indication of the amount of random variation associated with a single year’s indicator value. Where wide confidence intervals are displayed, little weight should be given to the variation from one year to the next — it could be due to chance alone. When considering trends, observing the degree of overlap of confidence intervals for individual bars (years) is helpful as an aid to interpretation of trends. If confidence intervals do not overlap the baseline, this is indicative of a change from baseline that is unlikely to be due to chance alone. 5. Age standardised rates Age standardised rates provide an estimate of an individual’s average annual risk of being injured. Age standardisation is a process of adjusting the rates of injury to account for changes in the age structure of a population over time. It allows comparison of the rates of injury from one year to another, taking into account the ageing population. Bar shading The coding scheme used for the diagnosis of injury is the World Health Organization (WHO) International Classification of Diseases (ICD)4. During the period considered in these charts, the ICD was substantially revised, and a new version of the coding scheme was introduced (from ICD-9 to ICD-10, refer Technical Report). This change has resulted in some differences in
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YEARLY REPORT 2012 MOTOR VEHICLE CR
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CONTENTS Reported injury crashes 20
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REPORTED INJURY CRASHES 2011 Photo
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5 CONTENTS: TABLES Section 1: HISTO
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REPORTED INJURY CRASHES 2009 11 8.
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SECTION 1: HISTORICAL
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7 HISTORICAL 15 FIGURE 1: ROAD DEAT
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HISTORICAL 17 TABLE 2: CRASH RATES
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HISTORICAL 19 TABLE 3: TYPE OF ROAD
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HISTORICAL 21 TABLE 4: CRASHES IN H
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SECTION 2: CASUALTIES AND CRASHES P
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M M CASUALTIES AND CRASHES 25 FIGUR
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CASUALTIES AND CRASHES 27 FIGURE 10
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CASUALTIES AND CRASHES 29 TABLE 8:
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M M CASUALTIES AND CRASHES 31 TABLE
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CASUALTIES AND CRASHES 61 TABLE 26A
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SECTION 3: TRUCK CASUALTIES AND CRA
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TRUCK CASUALTIES AND CRASHES 65 TAB
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SECTION 4: MOTORCYCLE CASUALTIES AN
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MOTORCYCLE CASUALTIES AND CRASHES 6
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MOTORCYCLE CASUALTIES AND CRASHES 7
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SECTION 5: PEDAL CYCLIST CASUALTIES
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M PEDAL CYCLIST CASUALTIES AND CRAS
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PEDAL CYCLIST CASUALTIES AND CRASHE
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SECTION 6: PEDESTRIAN CASUALTIES AN
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M PEDESTRIAN CASUALTIES AND CRASHES
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PEDESTRIAN CASUALTIES AND CRASHES 8
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SECTION 7: LOCAL BODY CASUALTIES AN
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LOCAL BODY CASUALTIES AND CRASHES 8
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SECTION 8: DRIVERS INVOLVED IN REPO
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DRIVERS INVOLVED IN REPORTED INJURY
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SECTION 9: ETHNICITY Photo courtesy
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national health STATISTICS FOR ROAD
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NATIONAL HEALTH STATISTICS FOR ROAD
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NATIONAL HEALTH STATISTICS FOR ROAD
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M NATIONAL HEALTH STATISTICS FOR RO
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M M NATIONAL HEALTH STATISTICS FOR
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Page 141 and 142: INTERNATIONAL COMPARISONS FOR ROAD
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Page 159 and 160: ROAD USER BEHAVIOUR SURVEYS 157 TAB
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Page 167: new zealand injury prevention strat
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Motor Vehicle Crashes in New Zealand 2011 - Ministry of Transport

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