Abstract
This paper goes one step beyond the age determination of the individual skeleton. It presents two methods for the reconstruction of the distribution of the age at death in a sample of skeletons. It is shown that the maximum likelihood method, in spite of certain weaknesses, is superior to the traditionally used proportional method, especially in situations when the analyzed sample consists of skeletons with very different conditions of preservation and thus age intervals of differing lengths. The maximum likelihood method eliminates a bias towards increased average age at death which is introduced by the proportional method. An analysis of an empirical example indicates that the difference between results obtained using the two methods increases with increasing age.
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References
Bennike P., 1985.Palaeopathology of Danish Skeletons: A Comparative Study of Demography. Disease and Injury. København, Akademisk Forlag.
Boldsen J.L., 1984.Problems in the reconstruction of vital statistics in past populations. Symposium i anvendt statistik 1984, Aarhus.
Boldsen J.L., 1987.Population structure and height in history. Unpublished manuscript.
Boldsen J.L. &Jeune B., 1985.Alderen for menopausens indtræden. Ugeskrift for læger, 147: 3641–3642.
Ferembach M., Schwidetzky I. &Stloukal M., 1980.Recommendations for age and sex diagnosis of skeletons. J. Hum. Evol., 9: 517–549.
Helm S. &Prydsø U., 1979.Assessment of age at death from mandibular molar attrition in medieval Danes. Scand. J. Dent. Res., 87: 79–90.
Kieffer-Olsen J., Boldsen J.L. &Pentz P., 1986.En nyfundet kirke ved Bygholm. Vejle amts årbog, 1986, 24–51.
Lassen A., 1965.Fald of fremgang. Træk af befolkningsudviklingen i Danmark 1645–1960. Aarhus. Jysk historisk selskab.
Mascie-Taylor C.G.N. &Boldsen J.L., 1986.Reecalled age at menarche in Britain. Ann. Hum. Biol., 13: 253–257.
Møller-Christensen V., 1958.Bogen om Æbelholt Kloster. København. Dansk videnskabs Forlag.
Turnbull B.W., 1976.The empirical distribution function with arbitrarily grouped, censored and truncated data. J. Royal Statistical Society B, 39: 290–295.
Ubelaker D.H., 1974.Reconstruction of Demographic profiles from Ossuary Skeletal Samples. Smithsonian Contributions to Anthropology, no. 18, Washington, D.C.
Welinder S., 1979.Prehistoric Demography. Acta Archaeol Lundensia, ser. 8, Minore 80, Lund.
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Boldsen, J.L. Two Methods for reconstructing the empirical mortality profile. Hum. Evol. 3, 335–342 (1988). https://doi.org/10.1007/BF02447215
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DOI: https://doi.org/10.1007/BF02447215