Lost cause?

(Mar 21, 2010)

Previously I wrote about how mortality rates by cause of death vary by deprivation index (and, by implication, socio-economic group). This substantially complicates any attempt to use cause-of-death data to make projections of mortality for annuity portfolios and defined-benefit pension schemes.

Another challenge lies in changes in classification over time. The most obvious change is that of the classification system itself: up until 2000 England & Wales used the ICD 9 system, whereas the ICD 10 system has been in use since 2001. Mapping from one to the other isn't always straightforward, not least because ICD 10 has many more causes of death than ICD 9.

One quick and obvious solution is to look at periods…

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Tags: cause of death, bronchopneumonia

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