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Complete Health Indicator Report of Sex Ratio at Birth

Definition

The sex ratio at birth is the comparison of male births to female births (term singletons only). The expected sex ratio at birth (male to female) is 1.05, or 5% more males born than females.

Numerator

Number of live male births in a specific period of time

Denominator

Number of live female births in a specific period of time

Why Is This Important?

The expected sex ratio at birth (male to female) is 1.05, or 5% more males born than females. Population growth is, in part, related to the number of live male children. Numerous studies have reported changes in the ratio of males to females at birth; many of the studies have found a reduction in male relative to female births in different countries throughout the world.

Other Objectives

Some factors can affect the sex of a newborn. Decreases in male births have been shown to be inversely related to parental smoking, gestation length, parental age, and birth order. Reproductive practices and social constructs regarding sex preferences - males over females, for example - can affect the observed sex ratio. Although the mechanism which determines the sex of the infant is not completely understood, some environmental studies have suggested that environmental hazards can affect how many males are born. Biological parent(s) and/or the fetus can come in contact with and become exposed to different hazards referred to as endocrine disruptors. Fewer males are conceived when exposure to endocrine disruptors results in a decrease in testosterone.

What Is Being Done?

The Office of Vital Records and Statistics at the Utah Department of Health records all birth records along with their associated sex.


Graphical Data Views

Sex Ratio at Birth by Year, 1989-2016

::chart - missing::

YearMale to Female Sex Ratio at Birth (Term Singletons Only)
Record Count: 28
19891.06
19901.04
19911.06
19921.04
19931.06
19941.05
19951.03
19961.06
19971.04
19981.03
19991.05
20001.05
20011.05
20021.04
20031.03
20041.04
20051.04
20061.06
20071.05
20081.04
20091.04
20101.05
20111.04
20121.05
20131.06
20141.05
20151.05
20161.03

Data Notes

Sex ratio at birth was calculated using resident births (regardless where the birth occurred), term (37-42 weeks), and singletons only.

Data Source

Office of Vital Records and Statistics, Utah Department of Health


Sex Ratio at Birth by County, Utah, 2000-2016

::chart - missing::

YearCountyMale to Female Sex Ratio at Birth (Term Singletons Only)Note
Record Count: 493
2000Beaver1.2
2000Box Elder1.1
2000Cache1.1
2000Carbon1.2
2000Daggett1.3*
2000Davis1.0
2000Duchesne1.0
2000Emery0.9
2000Garfield0.9
2000Grand0.9
2000Iron1.1
2000Juab1.1
2000Kane1.0
2000Millard1.0
2000Morgan1.0
2000Piute1.8*
2000Rich0.9*
2000Salt Lake1.0
2000San Juan1.0
2000Sanpete1.2
2000Sevier1.2
2000Summit1.2
2000Tooele1.2
2000Uintah0.8
2000Utah1.1
2000Wasatch1.2
2000Washington1.0
2000Wayne1.4
2000Weber1.0
2001Beaver1.0
2001Box Elder1.1
2001Cache1.0
2001Carbon0.8
2001Daggett****
2001Davis1.1
2001Duchesne1.1
2001Emery1.5
2001Garfield1.1
2001Grand1.0
2001Iron1.0
2001Juab1.2
2001Kane1.2
2001Millard1.0
2001Morgan1.0
2001Piute2.0*
2001Rich0.4*
2001Salt Lake1.0
2001San Juan1.0
2001Sanpete1.0
2001Sevier1.0
2001Summit1.0
2001Tooele1.1
2001Uintah1.2
2001Utah1.0
2001Wasatch1.0
2001Washington1.1
2001Wayne1.1
2001Weber1.0
2002Beaver0.7
2002Box Elder1.0
2002Cache1.0
2002Carbon0.9
2002Daggett****
2002Davis1.1
2002Duchesne1.2
2002Emery1.0
2002Garfield1.0
2002Grand1.5
2002Iron1.1
2002Juab1.3
2002Kane1.1
2002Millard1.0
2002Morgan1.0
2002Piute1.2*
2002Rich1.2*
2002Salt Lake1.0
2002San Juan0.8
2002Sanpete1.3
2002Sevier1.0
2002Summit1.1
2002Tooele1.1
2002Uintah1.1
2002Utah1.0
2002Wasatch0.9
2002Washington1.0
2002Wayne0.8
2002Weber1.0
2003Beaver1.2
2003Box Elder0.9
2003Cache1.0
2003Carbon1.0
2003Daggett0.7*
2003Davis1.1
2003Duchesne1.2
2003Emery0.9
2003Garfield1.0
2003Grand1.0
2003Iron0.9
2003Juab1.0
2003Kane1.1
2003Millard1.0
2003Morgan1.0
2003Piute0.5*
2003Rich0.9
2003Salt Lake1.0
2003San Juan0.9
2003Sanpete1.0
2003Sevier1.0
2003Summit1.1
2003Tooele1.1
2003Uintah1.0
2003Utah1.0
2003Wasatch1.0
2003Washington1.0
2003Wayne1.0
2003Weber1.0
2004Beaver1.3
2004Box Elder0.8
2004Cache1.0
2004Carbon0.9
2004Daggett****
2004Davis1.0
2004Duchesne0.8
2004Emery0.9
2004Garfield0.8
2004Grand1.1
2004Iron1.1
2004Juab1.2
2004Kane1.2
2004Millard0.8
2004Morgan1.0
2004Piute2.5*
2004Rich1.0
2004Salt Lake1.0
2004San Juan1.0
2004Sanpete1.0
2004Sevier1.2
2004Summit1.1
2004Tooele1.0
2004Uintah1.1
2004Utah1.0
2004Wasatch1.0
2004Washington1.1
2004Wayne0.8
2004Weber1.1
2005Beaver1.2
2005Box Elder1.2
2005Cache1.1
2005Carbon1.0
2005Daggett****
2005Davis1.1
2005Duchesne0.8
2005Emery1.2
2005Garfield2.2
2005Grand0.9
2005Iron1.2
2005Juab1.2
2005Kane0.8
2005Millard0.9
2005Morgan1.0
2005Piute1.3*
2005Rich0.9
2005Salt Lake1.0
2005San Juan1.2
2005Sanpete1.0
2005Sevier1.1
2005Summit1.1
2005Tooele1.0
2005Uintah1.0
2005Utah1.0
2005Wasatch1.1
2005Washington1.0
2005Wayne1.1
2005Weber1.1
2006Beaver1.3
2006Box Elder1.1
2006Cache1.0
2006Carbon1.0
2006Daggett****
2006Davis1.1
2006Duchesne1.0
2006Emery0.9
2006Garfield1.2
2006Grand0.9
2006Iron1.0
2006Juab1.5
2006Kane0.8
2006Millard0.8
2006Morgan1.0
2006Piute0.8*
2006Rich1.2
2006Salt Lake1.1
2006San Juan1.2
2006Sanpete1.0
2006Sevier1.0
2006Summit1.1
2006Tooele1.1
2006Uintah1.1
2006Utah1.0
2006Wasatch1.2
2006Washington1.1
2006Wayne0.9
2006Weber1.1
2007Beaver0.8
2007Box Elder1.0
2007Cache1.0
2007Carbon1.1
2007Daggett****
2007Davis1.0
2007Duchesne1.1
2007Emery1.3
2007Garfield0.9
2007Grand0.6
2007Iron1.0
2007Juab1.3
2007Kane1.3
2007Millard1.0
2007Morgan1.3
2007Piute0.7*
2007Rich0.7*
2007Salt Lake1.0
2007San Juan1.2
2007Sanpete1.0
2007Sevier1.1
2007Summit1.1
2007Tooele1.0
2007Uintah1.1
2007Utah1.1
2007Wasatch1.1
2007Washington1.0
2007Wayne0.9
2007Weber1.0
2008Beaver1.1
2008Box Elder0.9
2008Cache0.9
2008Carbon1.1
2008Daggett0.7*
2008Davis1.1
2008Duchesne1.0
2008Emery1.6
2008Garfield0.6
2008Grand1.1
2008Iron1.1
2008Juab1.0
2008Kane1.0
2008Millard0.8
2008Morgan1.0
2008Piute1.0*
2008Rich1.4
2008Salt Lake1.0
2008San Juan1.2
2008Sanpete1.1
2008Sevier1.0
2008Summit1.1
2008Tooele1.0
2008Uintah1.0
2008Utah1.0
2008Wasatch1.0
2008Washington1.0
2008Wayne0.9
2008Weber1.0
2009Beaver1.1
2009Box Elder1.0
2009Cache1.0
2009Carbon1.1
2009Daggett1.4*
2009Davis1.1
2009Duchesne1.2
2009Emery1.4
2009Garfield1.0
2009Grand1.0
2009Iron1.2
2009Juab1.3
2009Kane1.1
2009Millard1.1
2009Morgan1.4
2009Piute0.5*
2009Rich1.0
2009Salt Lake1.0
2009San Juan1.0
2009Sanpete1.0
2009Sevier1.1
2009Summit1.0
2009Tooele0.9
2009Uintah1.0
2009Utah1.0
2009Wasatch1.0
2009Washington1.1
2009Wayne1.0
2009Weber1.0
2010Beaver1.2
2010Box Elder1.0
2010Cache1.1
2010Carbon0.9
2010Daggett0.4*
2010Davis1.0
2010Duchesne1.0
2010Emery1.6
2010Garfield0.4
2010Grand1.0
2010Iron1.0
2010Juab1.2
2010Kane0.9
2010Millard0.9
2010Morgan1.1
2010Piute0.7*
2010Rich1.3
2010Salt Lake1.0
2010San Juan1.0
2010Sanpete1.1
2010Sevier0.9
2010Summit0.8
2010Tooele1.1
2010Uintah1.0
2010Utah1.1
2010Wasatch1.1
2010Washington1.1
2010Wayne0.9
2010Weber1.0
2011Beaver1.4
2011Box Elder1.0
2011Cache1.0
2011Carbon1.2
2011Daggett1.8*
2011Davis1.0
2011Duchesne0.9
2011Emery1.2
2011Garfield0.8
2011Grand1.4
2011Iron1.1
2011Juab1.0
2011Kane1.0
2011Millard0.9
2011Morgan1.1
2011Piute****
2011Rich1.0
2011Salt Lake1.0
2011San Juan1.0
2011Sanpete1.0
2011Sevier1.1
2011Summit1.0
2011Tooele1.0
2011Uintah1.2
2011Utah1.0
2011Wasatch1.1
2011Washington1.1
2011Wayne1.4*
2011Weber1.1
2012Beaver0.7
2012Box Elder1.0
2012Cache1.0
2012Carbon1.0
2012Daggett****
2012Davis1.1
2012Duchesne1.1
2012Emery1.4
2012Garfield0.9
2012Grand1.0
2012Iron1.1
2012Juab1.1
2012Kane1.1
2012Millard0.9
2012Morgan1.1
2012Piute1.2*
2012Rich1.3
2012Salt Lake1.0
2012San Juan1.0
2012Sanpete1.0
2012Sevier1.1
2012Summit1.1
2012Tooele1.1
2012Uintah1.0
2012Utah1.1
2012Wasatch1.2
2012Washington1.1
2012Wayne1.4*
2012Weber1.0
2013Beaver1.2
2013Box Elder1.1
2013Cache1.1
2013Carbon1.0
2013Daggett0.8*
2013Davis1.0
2013Duchesne0.9
2013Emery1.1
2013Garfield1.5
2013Grand1.0
2013Iron1.0
2013Juab1.4
2013Kane1.6
2013Millard1.0
2013Morgan1.1
2013Piute1.1*
2013Rich1.3*
2013Salt Lake1.0
2013San Juan1.0
2013Sanpete1.1
2013Sevier1.2
2013Summit1.0
2013Tooele1.0
2013Uintah1.1
2013Utah1.1
2013Wasatch1.0
2013Washington1.1
2013Wayne1.9*
2013Weber1.0
2014Beaver0.8
2014Box Elder1.0
2014Cache1.1
2014Carbon1.0
2014Daggett1.2*
2014Davis1.0
2014Duchesne1.0
2014Emery1.2
2014Garfield1.0
2014Grand0.9
2014Iron1.0
2014Juab1.1
2014Kane1.6
2014Millard1.6
2014Morgan1.0
2014Piute1.2*
2014Rich0.7
2014Salt Lake1.1
2014San Juan1.0
2014Sanpete1.1
2014Sevier1.0
2014Summit1.2
2014Tooele1.0
2014Uintah1.1
2014Utah1.0
2014Wasatch1.0
2014Washington1.1
2014Wayne2.9*
2014Weber1.0
2015Beaver0.6
2015Box Elder1.1
2015Cache1.0
2015Carbon1.0
2015Daggett****
2015Davis1.1
2015Duchesne1.1
2015Emery1.1
2015Garfield1.3
2015Grand1.2
2015Iron1.0
2015Juab0.9
2015Kane1.0
2015Millard1.0
2015Morgan1.1
2015Piute1.0*
2015Rich2.0*
2015Salt Lake1.0
2015San Juan1.1
2015Sanpete1.0
2015Sevier1.0
2015Summit1.0
2015Tooele1.0
2015Uintah1.0
2015Utah1.0
2015Wasatch1.0
2015Washington1.1
2015Wayne1.0
2015Weber1.0
2016Beaver1.2
2016Box Elder1.0
2016Cache1.1
2016Carbon1.1
2016Daggett****
2016Davis1.1
2016Duchesne0.9
2016Emery0.8
2016Garfield0.6
2016Grand1.2
2016Iron1.1
2016Juab1.0
2016Kane0.8
2016Millard1.0
2016Morgan0.9
2016Piute0.8*
2016Rich1.5
2016Salt Lake1.0
2016San Juan1.1
2016Sanpete1.1
2016Sevier1.0
2016Summit1.1
2016Tooele1.0
2016Uintah1.0
2016Utah1.0
2016Wasatch1.2
2016Washington1.0
2016Wayne0.6*
2016Weber1.0

Data Notes

Sex ratio at birth was calculated using resident births (regardless where the birth occurred), term (37-42 weeks), and singletons only.   [[br]] [[br]]*Use caution in interpreting, the estimate has a relative standard error greater than 30% and does not meet UDOH standards for reliability. **The estimate has been suppressed because 1) The relative standard error is greater than 50% or when the relative standard error can't be determined or 2) the observed number of events is very small and not appropriate for publication.

References and Community Resources

Office of Vital Records and Statistics, Utah Department of Health

More Resources and Links

Evidence-based community health improvement ideas and interventions may be found at the following sites:

Additional indicator data by state and county may be found on these Websites:

Medical literature can be queried at the PubMed website.

For an on-line medical dictionary, click on this Dictionary link.

Page Content Updated On 01/25/2018, Published on 02/06/2018
The information provided above is from the Department of Health's Center for Health Data IBIS-PH web site (http://ibis.health.state.gov). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Tue, 17 July 2018 1:34:53 from Department of Health, Center for Health Data, Indicator-Based Information System for Public Health Web site: http://ibis.health.state.gov ".

Content updated: Tue, 6 Feb 2018 12:54:08 MST