• Trends in national mortality rates •  

Graphs showing time trends in mortality rates

Male mortality at different ages from motor vehicle

crashes in New Zealand: 1950-2005

Graph showing New Zealand male motor vehicle crash mortality

Comment: Motor vehicle crash denotes any injury resulting from a motor vehicle on a public road. Circles represent rates for individual years. The peak rate for an individual year was 133 per 100 000 men aged 15-19 years in 1974. The black circle for that year is too far above the top of the graph to be visible.

Method: Mortality rates calculated using data from the World Health Organization and the United Nations Population Division, then standardised for age (by taking unweighted averages of component rates) and smoothed (as weighted 3-year moving averages). For details, see the Info page.

Caution: Trends can reflect not only changes in disease occurrence or treatment, but also changes in how a cause of death is defined or coded. (The same factors can also account for differences in mortality rates between different countries.) Those due to changes in definition or coding are artefacts, and may be indicated here by dotted (or thin) lines. But, many artefactual trends have no such indication.

WHO mortality rates for particular countries, ages and causes of death