@article{Thygesen_13_23,
author = {Thygesen, Lau Caspar and Knudsen, Lisbeth B. and Keiding, Niels},
title={{Modelling regional variation of first-time births in Denmark 1980-1994 by an age-period-cohort model}},
journal = {Demographic Research},
volume = {13},
number = {23},
pages = {573--596},
doi = {10.4054/DemRes.2005.13.23},
year = {2005},
abstract = {Despite the small size of Denmark, there have traditionally been rather consistent regional differences in fertility rates. We apply the statistical age-period-cohort model to include the effect of these three time-related factors thereby concisely illuminating the regional differences of first-time births in Denmark. From the Fertility of Women and Couples Dataset we obtain data on number of births by nulliparous women by year (1980-1994), age (15-45) and county of residence. We show that the APC-model describes the fertility rates of nulliparous women satisfactorily. To catch the regional variation an interaction parameter between age and county is necessary, which provides a surprisingly good description suggesting that the county-specific age-distributions of first-time fertility rates differ. Our results are in general agreement with the 'moral geography' concepts of Tonboe (2001).},
URL = {https://www.demographic-research.org/volumes/vol13/23/},
eprint = {https://www.demographic-research.org/volumes/vol13/23/13-23.pdf}
}