Dramatic differences in male and female timings of mortality changes for selected European cohorts for ~20 years

Background: Longevity is of considerable interest. Collation of recent data after World War II by the Human Mortality Database allowed analyses, previously unattainable, of modal death-ages for sufficient numbers of selected European cohorts. The aim was to track modes, medians and means (≥60 years old (y)) of all-cause mortality for both sexes. Methods: The only highest-quality, large-number Lexis data available were analyzed: from nine countries: Denmark, Finland, France, Iceland, Italy, Netherlands, Norway, Sweden and Switzerland; raw-data modes (and means/medians ≥60y, plus thin-plate-spline averages), were analyzed, plus pooled data. Results: Here we show that for cohorts 1880-~1900 dramatic sex differences existed between death-age changes with all countries except Iceland showing male modal negative trends lasting ~10-20 years and medians in all countries near-constant or negative lasting ~10-20 years; whereas females from all countries showed fairly constant positive trends (except Finnish modes and Norwegian medians). For cohorts ~1900-1919 male and female modal trends were positive (except Dutch and Icelandic cohorts and Finnish females). The net results were that male mortality modes for Danish, Icelandic, Italian, Dutch, Swedish and Norwegian 1919 cohorts were roughly the same as for 1880 cohorts, whereas female death-age modes increased. Conclusion: Results clarify previously knowledge concerning sex differences during this period. Despite improved environment in late adulthood over this period, this did not translate into increased male longevity and earlier events might have sealed their fate, especially in Denmark, Italy, Netherlands, Norway, aand Sweden (and, later, Iceland).