Indicator Profile of Sex Ratio at Birth

Why Is This Important?

Some studies have reported decreases in the ratio of males to females at birth in different countries around the world over time, and suggest that environmental hazards, such as exposure to endocrine disrupting chemicals, can affect how many males are born. Typically, about 5% more male infants are born than female infants.

Sex Ratio among Singleton Births by Year, New Jersey, 1990-2009

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Data Sources

Birth Certificate Database, Office of Vital Statistics and Registration, New Jersey Department of Health; 

Other Graphical Views


Ratio of males to females at birth for resident singleton births in a time period

How We Calculated the Rates

Numerator: Number of singleton males born to residents in a time period
Denominator: Number of singleton females born to residents in a time period

Page Content Updated On 05/15/13, Published on 05/15/13
Center for Health Statistics, New Jersey Department of Health, PO Box 360, Trenton, NJ 08625-0360, Web: www.nj.gov/health/chs, e-mail: chs@doh.state.nj.us
The information provided above is from the New Jersey Department of Health's NJSHAD Web site (http://nj.gov/health/shad). The information published on this website may be reproduced without permission. Please use the following citation: "Retrieved Sun, 01 March 2015 18:23:09 from New Jersey Department of Health, Center for Health Statistics, State Health Assessment Data Web site: http://nj.gov/health/shad".

Content updated: Sat, 20 Sep 2014 04:00:44 EDT