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Complete Health Indicator Report of Birth Outcomes: Sex Ratio at Birth

Definition

The ratio of total males/total females born in a geographic area at a certain time.

Numerator

The total number of full-term, singleton male infants born in a specified geographic area during and time period.

Denominator

The total number of full-term, singleton female infants born in a specified geographic area during and time period.

Why Is This Important?

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. Although the mechanism which determines the sex of the infant is not completely understood, some, but not all, 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. Because states have accurate Vital Statistics (VS) records on the sex of live births, changes over time in the sex ratio of infants can be measured as the ratio of males to females.

Other Objectives

CDC Environmental Public Health Tracking, Nationally Consistent Data and Measures (EPHT NCDM)


Graphical Data Views

Male to Female Sex Ratio at Birth (Term Singletons Only) by County, New Mexico 2010-2012

::chart - missing::
confidence limits

CountyLower LimitUpper LimitNoteNumer- atorDenom- inator
Record Count: 34
Bernalillo103.5100.9106.211,16810,787
Catron110.759.6161.83128
Chaves99.892107.71,2401,242
Cibola10188.8113.1527522
Colfax104.983.5126.3172164
Curry104.996.9112.91,2261,169
De Baca7518.4131.6Warning, small numbers, statistic not stable2128
Dona Ana102.798.51074,3084,194
Eddy101.392.61101,0131,000
Grant103.189.7116.4436423
Guadalupe83.947120.75262
Harding87.50188.9Warning, small numbers, statistic not stable78
Hidalgo76.744.7108.86686
Lea105.297.8112.71,4051,335
Lincoln93.175.6110.6243261
Los Alamos108.289.8126.6237219
Luna104.592.1116.9513491
McKinley99.192.21061,6111,626
Mora105.269.2141.16158
Otero98.390.2106.41,1631,183
Quay79.556.3102.7128161
Rio Arriba94.484.4104.4743787
Roosevelt105.891.4120.2382361
Sandoval10295.7108.21,9861,948
San Juan99.694105.12,4762,487
San Miguel102.589.4115.5456445
Santa Fe101.895.4108.21,8941,860
Sierra98.372.6124115117
Socorro10387.1118.9308299
Taos106.893.4120.3437409
Torrance11999.9138232195
Union121.387.4155.27461
Valencia106.898.7114.91,2131,136
NM102.3100.8103.735,94635,153


Male to Female Sex Ratio at Birth (Term Singletons Only) by Year, New Mexico 1990-2012

::chart - missing::
confidence limits

NM vs. U.S.YearMales per 100 FemalesLower LimitUpper LimitNumer- atorDenom- inator
Record Count: 23
New Mexico1990101.999.4104.412,31112,078
New Mexico1991101.398.8103.812,63912,479
New Mexico1992101.799.2104.112,61312,408
New Mexico1993102.499.9104.912,63212,338
New Mexico1994102.8100.3105.312,52712,182
New Mexico1995101.899.2104.312,15411,944
New Mexico1996101.298.7103.712,23012,085
New Mexico1997103100.4105.512,20011,850
New Mexico1998101.799.2104.212,23112,025
New Mexico1999102.399.8104.812,18711,914
New Mexico2000102.399.7104.812,08411,818
New Mexico2001101.799.1104.212,09311,895
New Mexico200210097.5102.512,26412,265
New Mexico200310198.5103.512,36512,239
New Mexico2004103.6101.110612,67912,244
New Mexico2005101.59910412,70412,514
New Mexico2006103.1100.7105.613,30312,900
New Mexico2007103.6101.2105.913,70713,237
New Mexico2008101.398.8103.713,09412,928
New Mexico2009102.9100.5105.412,71012,347
New Mexico2010104.4101.910712,27211,752
New Mexico201199.196.6101.711,75011,856
New Mexico2012103.3100.7105.811,92411,545

Data Source

Birth Certificate Data, Bureau of Vital Records and Health Statistics (BVRHS), New Mexico 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 03/12/2014, Published on 03/13/2014
The information provided above is from the New Mexico Department of Health's NM-IBIS web site (http://ibis.health.state.nm.us). The information published on this website may be reproduced without permission. Please use the following citation: "Retrieved Fri, 03 July 2015 from New Mexico Department of Health, Indicator-Based Information System for Public Health Web site: http://ibis.health.state.nm.us".

Content updated: Thu, 5 Jun 2014 18:11:36 MDT