As elsewhere, in the Saguenay region the relationship between the sex ratio and parental ages is unclear. Discussion In light of the above findings it would be premature to try to identify only one or two factors that could explain the unusually high sex ratio values for the Saguenay population.
Hoekstra,"A statistical analysis of the effect of warfare on the human secondary sex ratio", Human Biology, 72 3pp. Tuomisto,"Environmental chemicals and changes in sex ratio: analysis over years in Finland", Environmental Health Perspectives, 10pp. Westergaard, M. Mouritsen,"Natural variation in the human sex ratio", Sxe Reproduction, 14, pp.
James W. The lowest, at Is there a hereditary component in the propensity to procreate more boys or more girls?
COM with all the labeling services available. However, Bouchard et al. McGeehin, R. Wunsch et al. C Exemption Statement.
Erickson J. Certain patronyms exhibit very high male proportions of births, while others show the opposite.
Note, however, that comparisons are not perfect because of the quarterly groupings that were used. Chambers J.
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Tremblay, H. Shimizu, H. Sinks,"Changing sex ratio in the United States, ", Fertility and Sterility, Swguenay 2pp. Brant, J. Charbonneau, J.
Rutstein,"Sex ratio unaffected by parental age gap", Nature,p. In fact, it is interesting to note that the decrease observed in the Saguenay population coincides with a period of rapid industrialization in the region roughly, the end of the nineteenth and the beginning of the twentieth century. Sabuenay
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The decrease in the sex ratio observed during the beginning of the twentieth century is Saguenat with other similar decreases in the ratio in other populations during this same period. In every case, however, these fluctuations are relatively minor. These factors cannot fully explain the values observed in the Saguenay population, but it could be interesting to further explore such family- specific effects.
Unless stated otherwise, the term "sex ratio" will refer to the sex ratio at birth.
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Moller,"Decline in sex ratio at birth after Kobe earthquake", Human Reproduction, 13, pp. Anderton, M. Zonta,"Sex ratio and parental age gap", Human Biology, 71 1pp. This website contains photos and videos adult material!
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Moller, A. Houde which is consistent with the Saguenay data.
Caselli G. Sieff D. Stampnitzky,"Reduced ratio of male to female births in several industrial countries: a sentinel health indicator?