Tan E S, Lemmens P H, Koning A J
University of Limburg, Department of Medical Informatics and Statistics, The Netherlands.
Br J Addict. 1990 Jun;85(6):745-50. doi: 10.1111/j.1360-0443.1990.tb01686.x.
The assumption of a one parameter lognormal distribution in the Ledermann theory is relaxed. Implications of only regularity in distributional form for the collective nature of drinking behaviour are considered. It is shown that there must be a so-called point of attraction over which an increase in mean consumption will result in a decrease of percentile point value. The validity of regularity in distributional form and the practical relevance of the Ledermann model is discussed. An example from Dutch data on alcohol consumption among men obtained in 1970 and 1985 illustrates the relevance of an existing point of attraction.
莱德曼理论中关于单参数对数正态分布的假设被放宽。仅考虑分布形式的规律性对饮酒行为集体性质的影响。结果表明，必然存在一个所谓的吸引点，在该点之上平均消费量的增加将导致百分位点值的下降。讨论了分布形式规律性的有效性以及莱德曼模型的实际相关性。1970年和1985年获得的荷兰男性酒精消费数据的一个例子说明了现有吸引点的相关性。
