title: Temporal Variation in Rates of Multiple Maternities in Denmark, 1850-2012.
abstract: In this study, the temporal trends in the rates of multiple maternities in Denmark were analyzed and an association between the rates of multiple maternities and the socioeconomic variations in Denmark was obtained. The findings are compared with the results obtained in studies of Swedish rates. Obtained temporal differences in the twinning rates (TWRs) were similar to the results presented by Fellman and Eriksson (2014). Temporal variation in rates of multiple maternities in Sweden (1751-2000). JP Journal of Biostatistics, 11, 2, 143-156.
authors.affiliation: Hanken School of Economics,Helsinki,Finland.
authors.forename: Johan
authors.initials: J
authors.lastname: Fellman
mesh_terms: D003718:Denmark; D005260:Female; D006801:Humans; D008423:Maternal Age; D015233:Models, Statistical; D011247:Pregnancy; D011272:Pregnancy, Multiple; D013548:Sweden; D014427:Twins
keywords: Hellin’s law; artificial reproduction techniques (ART); maternal age; parity; standardization; triplet rate; twinning rate