Ratio of boys to girls at birth

British Medical Journal

Volumn 334, Issue 7592, 2007, Pages 486-487

  Bonde, Jens Peter Ellekilde ^a   Wilcox, Allen ^b  

^a AARHUS UNIVERSITY HOSPITAL   (Denmark)

^b NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

1,2 DIBROMO 3 CHLOROPROPANE; CIGARETTE SMOKE; LEAD;

BIRTH RATE; CONCEPTION; EDITORIAL; EMBRYO DEVELOPMENT; ENVIRONMENTAL EXPOSURE; ETHNIC DIFFERENCE; FEMALE GENITAL SYSTEM; FERTILIZATION; GEOGRAPHIC DISTRIBUTION; HUMAN; INFERTILITY; IONIZING RADIATION; MALE GENITAL SYSTEM; PARENTAL AGE; PREGNANCY; PRIORITY JOURNAL; PROGENY; SEX DIFFERENCE; SEX RATIO; SPERMATOZOON; X CHROMOSOME; Y CHROMOSOME; FEMALE; MALE; NOTE; PATHOPHYSIOLOGY; PHYSIOLOGY; SPERMATOZOON MOTILITY;

ENVIRONMENTAL EXPOSURE; FEMALE; HUMANS; INFERTILITY; MALE; SEX RATIO; SPERM MOTILITY; SPERMATOZOA;

EID: 33947533432     PISSN: 09598146     EISSN: None     Source Type: Journal    
DOI: 10.1136/bmj.39141.622917.80     Document Type: Editorial

References (12)

1. Smits LJ, de Bie RA, Essed GG, van den Brandt PA. Time to pregnancy and sex of offspring: cohort study. BMJ 2005;331:1437-8.
2. Olsen J, Weijin Z, Jin LZ. Time to pregnancy and sex ratio of offspring. Electronic response to Smits LJ, et al. Time to pregnancy and sex of offspring: cohort study. BMJ 2005. www.bmj.com/cgi/eletters/331/7530/1437#124413.
3. Grant VJ. Entrenched misinformation about X- and Y-sperm. Electronic response to Smits LJ, et al. Time to pregnancy and sex of offspring: cohort study. BMJ 2006. www.bmj.com/cgi/eletters/331/7530/1437#130012.
4. Joffe M, Bennett J, Best N, Jensen TK. Sex ratio and time to pregnancy: analysis of four large European population surveys. BMJ 2007 doi: 10.1136/bmj.39097.508426.BE.
5. Boklage CE. The epigenetic environment: secondary sex ratio depends on differential survival in embryogenesis. Hum Reprod 2005;20:583-7.
6. Mathews TJ, Hamilton BE. Trend analysis of the sex ratio at birth in the United States. Natl Vital Stat Rep 2005;53:1-17.
7. Martuzzi M, Di Tanno ND, Bertollini R. Declining trends of male proportion at birth in Europe. Arch Environ Health 2001;56:358-64.
8. Weijin Z, Olsen J. Offspring sex ratio as an indicator of reproductive hazards. Occup Environ Med 1996;53:503-4.
9. Trasler J. Paternal exposures: altered sex ratios. Teratology 2000;62:77-8.
10. Potashnik G, Porath A. Dibromochloropropane (DBCP): a 17-year reassessment of testicular function and reproductive performance. J Occup Environ Med 1995;37:1287-92.
11. Heron J, Ness A. Lack of association between smoking behavior and the sex ratio of offspring in the Avon longitudinal study of parents and children. Fertil Steril 2004;81:700-2.
12. Wu Z, Viisainen K, Hemminki E. Determinants of high sex ratio among newborns: a cohort study from rural Anhui province, China. Reprod Health Matters 2006;14:172-80.