2007 Natality

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In 2003, HHS Secretary Tommy Thompson approved the revision to the US Standard Certificate of Live Birth and encouraged all states to adopt it. The process involved in this revision, as well as details of what was revised, can be found at http://www.cdc.gov/nchs/nvss/vital_certificate_revisions.htm.

Texas adopted the new US Standard Certificate of Live Birth in 2005. This revision includes changes to items such as onset of prenatal care, maternal smoking history, race/ethnicity etc. For details regarding race/ethnicity computation for birth data, see Table 44.

Births and Birth Rates

There were 407,453 live births to Texas residents in 2007, an increase of 2.0 percent (8,144 more births) from 2006, and an increase of 19.1 percent (65,254 more births) from 1998.

Figure 4 Birth and Birth Rates

In the ten-year period from 1998 through 2007, the proportion of births to white* mothers decreased every year, from 44.1 percent of all births in 1998 to 38.5 percent in 2007. At the same time, the proportion of births to Hispanic mothers increased from 44.2 percent of births in 1998 to 50.2 percent in 2007. The number of Hispanic births has exceeded the number of white births since 1996. The proportion of births to black mothers decreased from 11.7 percent in 1998 to 11.3 percent in 2007.

* Includes women of other and unknown race/ethnicity.

The 2007 crude birth rate of 17.0 births per 1,000 Texas residents is the second lowest rate on record. The crude birth rate has increased by 0.1 births per 1,000 residents from 2005. The rate for whites* dropped from 13.1 in 1998 to 12.7 in 2007. The crude birth rate for blacks declined from 17.8 in 1998 to 16.6 in 2007. The Hispanic rate went from 25.7 to 23.3.

Figure A Crude Birth Rates by Race Ethnicity, Texas Residents 1998 to 2007

The general fertility rate for Texas, which is the number of live births to Texas residents per 1,000 women ages 15 through 44, was 78.3 in 2007. In 1998, it was 75.4 (Figure B). Like crude birth rates, race/ethnicity-specific general fertility rates have been highest among Hispanics, and lowest among whites* over the past ten years. In 1998, the general fertility rates of whites*, black, and Hispanics were 58.9, 70.8, and 107.2, respectively. In 2007, fertility rates for white* females increased to 64.2, while the rates for Black and Hispanic females has decreased to 69.8 and 97.3 respectively.

Figure B General Fertility Rates by Race/Ethnicity Texas Residents, 1998 to 20007


Mother’s Age and Father’s Age

More than half (55.0 percent) of Texas resident live births in 2007 were to mothers 20 to 29 years of age, and three-fourths (74.9 percent) were to mothers 20 to 34 years old (Table A). Mothers aged 10-17 accounted for 4.9 percent of the births in 2006 and 2007. The percentage of mothers aged 18 and 19 increased slightly to 8.7 percent. In the same time frame, the percentage of births to mothers aged 30-34 increased sligthly from 19.9 to 20.0 percent and the percentage of births to mothers aged 35-39 increased to 9.6 percent.

 

Table A.1. Percent distribution of live births by mother's age and race/ethnicity; Texas residents, 2007. Percent of Live Births**
Age White* Black Hispanic All Races
10-14 0.1 0.4 0.3 0.2
15-19 8.0 16.9 16.6 13.3
20-24 23.3 33.3 30.0 27.8
25-29 29.3 25.3 26.0 27.2
30-34 24.5 15.1 17.6 20.0
35-39 12.4 7.3 7.9 9.6
40+ 2.5 1.8 1.6 2.0
  • * Includes women of other and unknown race/ethnicity.
  • ** Denominator for percent excludes missing data.
  • Note: due to rounding, percents may not sum to 100%


Table A.2. Percent distribution of live births by mother's age and race/ethnicity; Texas residents, 2007. Percent of Live Births for Selected Age Groups
Age White* Black Hispanic All Races
10-17 2.2 6.0 6.7 4.9
18-19 5.9 11.3 10.2 8.7
20-29 52.6 58.6 56.0 55.0
20-34 77.1 73.7 73.5 74.9
35+ 14.8 9.1 9.6 11.5
  • * Includes women of other and unknown race/ethnicity.
  • Note: due to rounding, percents may not sum to 100%

Mothers' ages ranged from 11 to 54 years; the mean mother's age was 26.5 years. Among birth certificates that included information on the father's age (85.0 percent of all birth certificates), fathers ranged in age from 12 to 80. The mean father's age was 29.5 years.

Age-specific birth rates, calculated as the number of live births per 1,000 women in the specified age group, were highest among women aged 20-24, followed by women aged 25-29 for all races combined (Table B). Hispanic women aged 20-24, followed by Hispanic women aged 25-29 and black women aged 20-24 had the highest age-specific birth rates for individual race/ethnicities. White women were the only race/ethnicity whose highest age-specific birth rate occurred in the 25-29 age group. Age-specific birth rates for Hispanics were higher than rates for whites or blacks at every age group except 30-34 years. Whites in the youngest three age groups had the lowest fertility; blacks had the lowest fertility in the remaining age groups.

 

Table B. Race/ethnicity and age-specific rates1 (live births per 1,000 women in the race/ethnicity and age group); Texas residents, 2007
Age White* Black Hispanic All Races
10-14
0.2
1.6
1.7
1.1
15-19
31.6
62.9
90.5
60.6
20-24
92.6
135.1
169.6
130.1
25-29
119.2
109.5
142.0
127.9
30-34
100.4
70.5
96.9
95.4
35-39
44.8
31.1
48.6
44.6
40-44 8.0
6.9 11.1 8.9
All ages^ 64.2
69.8 97.3 78.3
  • * Includes women of other and unknown race/ethnicity.
  • ^ The general fertility rate. Numerator includes mothers of unknown ages; denominator is women 15-44 years of age.
  • 1. Rates were calculated using population data from the Texas State Data Center. Births of unknown race/ethnicity, and of racial/ethnic groups other than white, black or Hispanic were included with white for the purposes of calculating birth and fertility rates.

Marital Status

Overall, 59.1 percent of mothers reported being married. However, there were large differences in marriage rates across age groups and race/ethnicities (Table C). In general, white mothers were most likely to be married and black mothers least likely to be married. Very few mothers aged 14 and younger were married, although very young white mothers were most likely to be married and very young black mothers were least likely to be married. The likelihood of being married generally increased with the mother's age for all race/ethnicities, although marriage rates for most mothers dropped slightly at age 40 and up. 

 

Table C. Marital status by mother's age and race/ethnicity; Percent Married** Texas residents, 2007
Age White* Black Hispanic All Races
10-14
2.3
0.6
2.1
1.8
15-19 23.3 4.5 20.4 18.8
20-24 55.9 19.4 44.0 44.5
25-29 83.2 43.0 62.4 69.0
30-34
91.1
61.8
71.8
80.1
35-39 91.0 69.5 74.8
82.4
40+
89.2
70.5
73.2
80.6
All ages^ 75.1 33.7 52.6 59.1
  • * Includes women of other and unknown race/ethnicity.
  • ** Denominator for percent excludes missing data.
  • ^ Numerator and denominator include mothers of unknown ages.

Prenatal Care

Beginning with 2001 data, Vital Statistics annual reports do not include tables or data based on the Kessner Index. (These data may still be obtained by request.) Please see the sources at the end of this chapter for more information regarding strengths and weaknesses of various prenatal care utilization indexes 1, 2 . The Kessner index data in Table 13 has been replaced with data on the mother's marital and educational status.

This annual report still includes data on the month in which prenatal care began because it is one of the indicators suggested by the CDC's Healthy People 2010 initiative 3. However, due to implementation of a new birth certificate for 2005 data, onset of prenatal care within the first trimester is not directly comparable to previous years (Source: Technical Appendix from Vital Statistics of the United States, 2004. Natality in the Documentation of the Detail Natality Public Use File for 2004).

 

 

Table D. Trimester prenatal care began, Percent of Live Births**; Texas residents, 2007
Trimester White* Black Hispanic All Races
1st 69.9 51.7 52.2 59.0
2nd 22.2 32.2 32.1 28.3
3rd 5.3 10.1 9.2 7.8
No care 2.7 6.0 6.5 5.0
  • * Includes women of other and unknown race/ethnicity.
  • ** Denominator for percent excludes missing data.
  • Note: due to rounding, percents may not sum 100%.

Place of Delivery and Birth Attendant

Nearly all Texans who gave birth in 2007 did so in a hospital (99.2 percent). A small number occurred in licensed birthing centers (0.4 percent) or at home (0.4 percent), or other locations (negligible).

Physicians delivered 95.9 percent of infants born to Texas residents. Certified nurse-midwives attended 2.6 percent of all births and lay midwives attended 0.4 percent. The remainder, about 1.0 percent, were delivered by other types of attendants, such as EMS workers or relatives.

Low Birth Weight and Very Low Birth Weight

There were 34,241 low birth weight (<2,500 grams) infants born to Texas residents in 2007, which is 8.4 percent of live births (Table E). The rate was 8.5 percent in 2006 and 8.3 percent in 2005. Since 1998, low birth weight infants have increased from 7.4 percent to 8.4 percent of live births.

The risk of giving birth to a low birth weight infant remains much higher for black mothers (14.4 percent) than for Hispanic mothers (7.5 percent) or white mothers (7.8 percent). The incidence of low birth weight infants is higher among the youngest and oldest mothers. In 2007, 12.9 percent of births to mothers ages 14 and younger and 12.3 percent of births to mothers ages 40 and older were low birth weight.

A total of 5,999 births (1.5 percent of live births) were very low birth weight (<1,500 grams). This rate is slightly higher than the rate since 2001 (i.e. 1.3 percent). As with low birth weight, the risk of having a very low birth weight infant was highest for black mothers, and for the youngest and oldest mothers. The percentage of births to women 40 and over is up from 2001, when 1.7 percent of the women in that age group gave birth to very low birth weight infants.

 

 

Table E.1. Low birth weight and very low birth weight, by mother's race/ethnicity; Texas residents, 2007

Very Low Birth Weight
(<1,500 grams)
Low Birth Weight
(<2,500 grams)
Race/
Ethnicity
Number of
Births
Percent of
Births
Number of
Births
Percent of
Births
White* 1,946 1.2 12,207 7.8
Black 1,466 3.2 6,633 14.4
Hispanic 2,587 1.3 15,401 7.5
All Races 5,999 1.5 34,241 8.4
  • * Includes women of other and unknown race/ethnicity.


Table E.2. Low birth weight and very low birth weight, by mother's age; Texas residents, 2007

Very Low Birth Weight
(<1,500 grams)
Low Birth Weight
(<2,500 grams)
Age Number of
Births
Percent of
Births
Number of
Births
Percent of
Births
10-14
18
2.0
114
12.9
15-19 863
1.6 5,147 9.5
20-24 1,553 1.4 9,442 8.3
25-29 1,448 1.3 8,473 7.6
30-34 1,237 1.5 6,501 8.0
35-39 689 1.8 3,588 9.2
40+ 191 2.4 976 12.3
Unknown
0
0.0
0
0.0
Total
5,999
1.5
34,241
8.4

Other Birth Characteristics

In 2007, male infants accounted for 51.1 percent of all births (208,222) and female infants accounted for 48.9 percent (199,231). The majority of all births were either first children (38.2 percent) or second children (31.0 percent). Third children accounted for 18.4 percent of all births, fourth children 7.7 percent, and fifth children 2.7 percent.

There were 395,032 singleton births, accounting for 97.0 percent of all births. Twin births accounted for 2.9 percent of all births. Triplets and quadruplets occurred in less than 0.2 percent of all births.


  1. Kogan MD, Martin JA, Alexander GR, Kotelchuck M, Ventura SJ, Frigoletto FD. The changing pattern of prenatal care utilization in the United States, 1981-1995, using different prenatal care indices. JAMA, 279:1623-1628.
  2. Alexander GR, Kotelchuck M. Quantifying the adequacy of prenatal care: a comparison of indices. Public Health Rep 1996 Sep-Oct;111(5):408-18.
  3. http://www.healthypeople.gov/Document/HTML/Volume2/16MICH.htm#_Toc494699663; http://www.healthypeople.gov/Document/html/tracking/od16.htm#prenatalcare.

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2007 Annual Report Table of Contents
Annual Reports for Other Years
Center for Health Statistics

Last updated January 11, 2011