The starting point and until today the most important research project of the cloister study is the question if male excess mortality (in the industrialized countries currently 5-8 years in life expectancy at birth) is mainly caused by biological factors (genetic or hormonal differences) or non-biological factors (differences in life-style or environmental issues). The fact that non-biological risk factors can be largely ruled out inside the catholic cloistered population allows testing the impact of biological causes on female survival advantages. The works of this study have been awarded with the first prize for researches by young scholars of the German Foundation for World Population (DSW) and the German Association for Demography (DGD) in 1998 and with the Gunther Beyer Award of the European Association of Population Studies (EAPS) in 2003.Numbers of individuals, deaths, and person-years at risk lived above age 25 of Bavarian nuns and monks during the observation periods
Bavarian Nuns Bavarian Monks ---------------------------------------------------------------- Period lived years C.D.R. lived years C.D.R. ---------------------------------------------------------------- 1955/1985 87.944,99 20,49 37.194,32 18,26 1960/1990 81.518,14 22,98 35.752,86 20,67 1965/1995 73.506,72 26,24 33.592,63 23,37 ---------------------------------------------------------------- C.D.R. = Crude death rate
Life expectancy at age 25 e25 for females and males of the general German population and for Bavarian nuns and monks with prevailing sex differences
German Population Bavarian Nuns and Monks --------------------------------------------------------------- Mortality table difference Mortality table difference --------------------------------------------------------------- 1960/1962 4,55 1946/1976 0,71* 1964/1966 5,03 1950/1980 0,99* 1970/1972 5,49 1955/1985 0,80* 1974/1976 5,73 1960/1990 1,57* 1979/1981 6,06 1965/1995 2,27* --------------------------------------------------------------- * Statistical signifcant difference from the German population on the 95%-confidence-level
Numbers of individuals, deaths, and person-years at risk lived above age 25 of Bavarian nuns and monks during the observation periods
Bavarian Nuns Bavarian Monks -------------------------------------------------------------------------------------------------------------------------- Period Persons Deaths lived years C.D.R. Persons Deaths lived years C.D.R. -------------------------------------------------------------------------------------------------------------------------- 1955/1985 4.082 1.802 87.944,99 20,49 1.788 679 37.194,32 18,26 1960/1990 3.828 1.873 81.518,14 22,98 1.744 739 35.752,86 20,67 1965/1995 3.543 1.929 73.506,72 26,24 1.702 785 33.592,63 23,37 -------------------------------------------------------------------------------------------------------------------------- C.D.R. = Crude death rate
Life expectancy at age 25 e25 for females and males of the general German population and for Bavarian nuns and monks with prevailing sex differences
German Population Bavarian Nuns and Monks ------------------------------------------------------------------------------------------------- Mortality table Women Men difference Mortality table Women Men difference ------------------------------------------------------------------------------------------------- 1960/1962 50,33 45,78 4,55 1946/1976 49,12* 48,41* 0,71* 1964/1966 50,89 45,86 5,03 1950/1980 50,05* 49,06* 0,99* 1970/1972 51,14 45,65 5,49 1955/1985 50,95 50,15* 0,80* 1974/1976 51,79 46,06 5,73 1960/1990 51,88 50,31* 1,57* 1979/1981 53,05 46,99 6,06 1965/1995 52,88 50,61* 2,27* ------------------------------------------------------------------------------------------------- * Statistical signifcant difference from the German population on the 95%-confidence-level
Life expectancy at age 25 for German females and males and for Bav. nuns and monks represented at the mid calendar year of the observation periods
Frauen = Women | Männer = Men | Nonnen = Nuns | Mönche = Monks
In conclusion, if there is a biological difference, the difference is very small (about 2 years). To answer the question why men die earlier, we have to look at many different factors and I will eventually do so in another post. Nevertheless male health does not have the same focus female health has and without a doubt the difference in mortality rates is another reason we should have a closer look at men's health.