Some other countries have carried out similar studies following the introduction of ICD-10. The results of those studies are largely similar to the UK, though some differences are apparent. These will be due in part to real differences in the distribution of causes of deaths between countries. However, they will also reflect differences in the way certificates are completed, the numbers and types of conditions mentioned and the exact terminology used.
In addition, most of these other countries either already had or added a fourth line in part one for the sequence of conditions leading to death, as recommended by WHO in ICD-10. This has not been done in England and Wales. Previous studies in the USA and France have shown that the addition of lines in part I tends to increase the proportion of deaths attributed to chronic debilitating diseases, through the ability to record longer sequences directly leading to death.
Some of these studies are online and available to view from this page.