id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_vv4csb7gajfrjiuc2qiad26z2u	J. R Ashton	Starting a rumour, following Christopher Columbus, and spending other people's money	2003	4	.pdf	application/pdf	4091	665	82	Secular trends in sex ratios at birth in North America and Objective: This study analyses secular trends in gender ratios for live births over the second half of the Results: The findings show a highly significant overall decline in male births in both Europe and North These trends produced an overall European male live birth deficit 238 693 and cycle.19 In this study, we identify secular trends in M/F in different countries and continents from a World Health Organisation dataset for the second half of the 20th century. Table 1 Male, female, total births and linear regression of sex ratio with time for countries included in this study as the onset of the study period in the 1950s is slightly different for Europe and North America, the peak in male live births sex ratio at birth by studying secular trends, we still cannot Different sex ratios at birth in Europe and North America.	./cache/work_vv4csb7gajfrjiuc2qiad26z2u.pdf	./txt/work_vv4csb7gajfrjiuc2qiad26z2u.txt