Mother's occupation and sex ratio at birth

BMC Public Health

Table 1 Job type stress levels and sex ratio.

Job category	Stress level	% male births	N
Arts, cultural, recreational, sports	1	52.10	119
Social, legal, government, educational, religious services	2	53.83	1257
Engineering, natural sciences, architectural, IT	3	49.02	714
Business, finance, administration	4	50.33	2492
Sales, services	5	51.47	3674
Management	6	51.61	2939
Farming, fishing and natural resources	7	44.90	49
Health, Stay-at-home, armed forces	8	52.34	4471
Trades, transport, construction	9	40.38	265
Processing, manufacturing, utilities	10	51.53	392

Given are different job type stress levels, percent male births, and sample sizes (N). Stress level of 1 = lowest stress level, 10 = highest stress level. The data set includes births and other information collected by Addenbrooke's hospital in Cambridge, England, between 2000 and 2005. P-values in bold indicate significant of p < 0.05 or smaller.

ISSN: 1471-2458