2001 Ergebnisse
Sortierung:
In: Human biology: the international journal of population genetics and anthropology ; the official publication of the American Association of Anthropological Genetics, Band 73, Heft 2, S. 315-319
ISSN: 1534-6617
In: The American journal of sociology, Band 52, Heft 3, S. 224-234
ISSN: 1537-5390
In: Mathematical population studies: an international journal of mathematical demography, Band 8, Heft 1, S. 91-107
ISSN: 1547-724X
In: Journal of Economic Surveys, Band 33, Heft 3, S. 1050-1069
SSRN
In: Family relations, Band 34, Heft 1, S. 146
ISSN: 1741-3729
In: Canadian Journal of Sociology / Cahiers canadiens de sociologie, Band 10, Heft 2, S. 207
In: IZA Discussion Paper No. 11463
SSRN
In: Social science information, Band 43, Heft 1, S. 115-122
ISSN: 1461-7412
This study sought to verify reports of increasing proportions of males being born during times of war. We analyzed the sex ratio of over 12,000 births occurring between 1940 and 1980, over 9000 of which occurred specifically in the United States, with the remainder taking place primarily in Canada. Our findings confirmed that, for both the United States and elsewhere, significantly greater proportions of males were born during times of war than during years of relative peace.
Sex-specific feticide is considered to be relatively common practice in India, where the male:female sex ratio at livebirth was about 1·10 in 2010–12,1 as opposed to a comparable sex ratio of 1·06 for Asian countries in 2010.2 These changes have occurred over recent decades, with one study3 of hospital deliveries in New Delhi reporting an increase in the sex ratio at livebirth from 1·06 in 1985 to 1·16 in 2005. In response to the introduction of ultrasound scanning in India in the 1980s, the national government passed a piece of legislation (the Pre-natal Diagnostic Techniques Act) making determination of fetal sex illegal.
BASE
In: IZA Discussion Paper No. 15487
SSRN
In: Working paper series 2011,23
In: The American journal of sociology, Band 38, Heft 2, S. 225-231
ISSN: 1537-5390
In: Asian journal of research in social sciences and humanities: AJRSH, Band 5, Heft 9, S. 180
ISSN: 2249-7315
In: Population: revue bimestrielle de l'Institut National d'Etudes Démographiques. French edition, Band 4, Heft 2, S. 379
ISSN: 0718-6568, 1957-7966
In: Journal of biosocial science: JBS, Band 44, Heft 3, S. 357-364
ISSN: 1469-7599
SummaryThis investigation aims to contribute to the existing literature on demographic and ecological factors affecting the sex ratio at birth, by analysing the births in Croatia from 1998 to 2008. Data from birth certificates for all Croatian births for the investigated period (n=420,256) were used to establish the link between parental ages, birth order, region of birth, parental occupation and parental education level, and sex of the child. The χ2 test and t-test were used to assess the significance of each of the factors, along with multiple logistic regression to control for possible confounding effects. The results suggest that a joint higher age of both parents significantly lowers the sex ratio at birth. There is also a regional variation in sex ratio at birth, the lowest value being in Central Croatia and the highest in the City of Zagreb. Changes in the reproductive physiology of older parents are most probably responsible for the lower sex ratio, although the limited sample size warns against widespread generalizations. The causes of the regional variation in sex ratio at birth are most likely the different regional levels of obesity and physical inactivity.
