This report elucidates the issue of Japan’s missing centenarians, which was uncovered in 2010. We provide the latest figures from verification efforts, discuss sources of centenarian information in Japan, examine possible causes, and evaluate the effect of the missing centenarians on...

Over the last ten years, the modal age at death has become a focus of research on human longevity, notably because it provides information about the most frequent adult age at death without being influenced by mortality conditions at early ages. Little is known about levels and trends in adult...

Arthur Roger Thatcher, CB, died in London on February 13, 2010, at 83 years of age. He was actively engaged in demographic research until his death. One of his last papers, The Compression of Deaths above the Mode, is published in this volume of Demographic Research (Thatcher et al., 2010)....