Trends in ages at death of Norwegian centenarians: the 1870-1904 birth cohorts.

BACKGROUND

With rapidly rising life expectancy and ageing populations, interest has grown in the survival patterns and ages at death at the highest ages. In Scandinavia, the accumulation of very old population segments coupled with long-established, high-quality population registers permit meaningful analysis.

METHODS

This study is based on individual level data from extinct Norwegian birth cohorts using data obtained from the Norwegian Civil Register System. We assess trends in the ages at death of centenarians in Norway for cohorts born between 1870 and 1904 for evidence of any secular increase using quantile regression.

RESULTS

We observed that there is no upward trend in centenarian lifespans, in line with recent observations in Sweden, but contrary to the upward trend at the very highest percentiles as observed in Denmark.

CONCLUSIONS

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