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    Immunization Branch
    Central Office
    1100 West 49th Street
    Austin, Texas 78756

    Phone: (512) 776-3711
    Fax: (512) 458-7288

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Texas Immunization Survey (TIS)

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Immunization Branch

logo: Vaccines Build your child's health

Texas Immunization Survey

Commissioned by the Associateship for Disease Control and Prevention of the Texas Department of Health, the Texas Immunization Survey (TIS) is a population-based survey designed to assess immunization levels among Texas children 3 through 24 months of age. Statewide surveys were conducted in 1994, 1996, 1998 and 2000. The 1994 TIS was an in-person survey and the 1996, 1998 and 2000 TIS were random digit dial telephone surveys. Trained interviewers used a standardized English- or Spanish-language instrument to solicit information from a parent or legal guardian. The instrument was modeled after the Centers for Disease Control and Prevention State and Local Area Immunization Coverage and Health Survey questionnaire. To determine a child's immunization history, interviewers asked for dates of each vaccine including diphtheria-tetanus-pertussis vaccine (DTP), polio vaccine (OPV/IPV), and measles, mumps, and rubella (MMR) vaccine. For parents without their child's shot record, interviewers asked about each vaccine, whether the child had received the shot, how many, and at what age. A proportion of immunization histories were verified with providers records.

In tables showing results from the TIS, children were defined as up-to-date if they met the following criteria:

  • 3 through 4 months of age: received 1 dose of diphtheria-tetanus-pertussis (DTP) vaccine and 1 dose of polio vaccine (OPV/IPV)
  • 5 through 6 months of age: received 2 DTP and 2 OPV/IPV
  • 7 through 15 months of age: received 3 DTP and 2 OPV/IPV
  • 16 through 24 months of age: received 4 DTP, 3 OPV/IPV, and 1 dose of measles-mumps-rubella vaccine

Percentage of Children Up-to-Date on Immunizations

Survey Year

%

(N)

1994

61.9

4,456

1996

67.9

2,983

1998

65.9

417

2000

70.3

2,156

Percentage of Children Up-to-Date on Immunizations by Race/ethnicity

 

1994 %

1994 (N)

1996 %

1996 (N)

1998 %

1998 (N)

2000 %

2000 (N)

White

64.1

(1631)

70.3

(1311)

66.4

(217)

73.6

(660)

African American

47.4

(574)

56.0

(478)

63.4

(41)

72.1

(106)

Hispanic

64.9

(2132)

68.3

(1105)

66.4

(146)

66.7

(664)

Percentage of Children Up-to-Date on Immunizations
by Health Insurance Coverage and Public Assistance Factors

Health Insurance:

 

1994 %

1994 (N)

1996 %

1996 (N)

1998 %

1998 (N)

2000 %

2000 (N)

None

61.7

(1415)

62.3

(382)

61.9

(63)

54.8

(288)

Medicaid

52.0

(1110)

69.3

(1063)

62.7

(134)

72.1

(716)

Private

67.2

(1931)

68.7

(1538)

69.1

(220)

73.6

(1125)

Receiving AFDC:

 

1994 %

1994 (N)

1996 %

1996 (N)

1998 %

1998 (N)

2000 %

2000 (N)

Yes

47.6

(697)

66.5

(240)

*  

73.9

(52)

No

64.6

(3757)

68.3

(2737)

66.7

(393)

70.2

(1419)

Enrolled in WIC:

 

1994 %

1994 (N)

1996 %

1996 (N)

1998 %

1998 (N)

2000 %

2000 (N)

Yes

64.1

(2146)

69.2

(1187)

63.9

(169)

68.0

(666)

No

60.4

(2310)

66.9

(1791)

67.6

(247)

72.1

(804)

AFDC = Aid to Families with Dependent Children
WIC = Women, Infants and Children
* Pecentage not calculated. Sample size was less than 25.

Percentage of Children Up-to-Date on Immunizations by County

County

1994 %

1994 (N)

1996 %

1996 (N)

2000 %

2000 (N)

Bexar

60.3

377

69.2

251

67.3

202

Dallas

61.6

373

64.2

364

68.6

185

El Paso

72.7

377

67.9

246

59.1

203

Harris

51.9

373

68.6

304

68.5

168

Hidalgo

65.9

379

71.3

224

65.6

212

Nueces

60.9

369

63.2

268

64.5

211

Potter

60.3

371

69.8

258

72.2

205

Smith

64.7

370

68.3

244

66.7

171

Tarrant

62.0

372

65.4

408

72.6

186

Travis

57.5

355

71.9

270

73.9

176

 

Immunizations Rates by Race/ethnicity for Counties and Cities in Texas

Bexar County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
71.2
(60)
66.2
(91)
African American
--
--
--
--
Hispanic
54.6
(298)
69.5
(144)

Dallas County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
62.1
(146)
67.9
(145)
African American
49.7
(65)
62.4
(116)
Hispanic
70.1
(143)
61.9
(88)

El Paso County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
72.2
(51)
72.4
(54)
African American
--
--
--
--
Hispanic
72.0
(300)
66.5
(182)

Harris County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
57.3
(114)
73.5
(94)
African American
35.7
(84)
62.1
(119)
Hispanic
56.8
(158)
67.6
(74)

Hidalgo County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
--
--
--
--
African American
--
--
--
--
Hispanic
67.2
(363)
72.3
(212)

Nueces County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
63.9
(143)
70.0
(113)
African American
--
--
--
--
Hispanic
60.5
(205)
59.2
(140)

Potter County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
65.3
(188)
77.3
(150)
African American
53.8
(72)
--
--
Hispanic
48.6
(93)
62.4
(78)

Smith County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
66.0
(199)
72.0
(187)
African American
52.8
(109)
67.8
(38)
Hispanic
82.4
(55)
--
--

Tarrant County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
62.4
(181)
71.3
(209)
African American
51.4
(55)
57.9
(126)
Hispanic
69.4
(122)
57.3
(56)

Travis County

Population

1994 %

1994 (N)

1996 %

1996 (N)

White
55.8
(167)
73.6
(162)
African American
46.0
(56)
--
--
Hispanic
67.9
(124)
72.4
(76)


Texas Immunization Survey Publications

  1. Prislin R, Suarez L, Simpson D, Dyer J.
    Link to domain outside of TDH.When Acculturation Hurts: The Case of Immunization.
    Soc Sci Med. 1998; 47(12): 1947-56.
  2. Prislin R, Dyer J, Blakely C, Johnson C.
    Link to domain outside of TDH.Immunization Status and Sociodemographic Characteristics: The Mediating Role of Beliefs, Attitudes, and Perceived Control.
    Am J Pub Hlth. 1998; 88(12): 1821-26.
  3. Simpson D, Suarez L, Smith D.
    Link to domain outside of TDH.Immunization Rates Among Young Children in the Public and Private Health Care Sectors.
    Am J Prev Med. 1997; 13(2): 84-88.
  4. Suarez L, Simpson D, Smith D.
    Link to domain outside of TDH.Impact of Public Assistance Factors on the Immunization Levels of Children Younger than 2 Years.
    Am J Pub Hlth. 1997; 87(5): 845-48.
  5. Suarez L, Simpson D, Smith D.
    Link to domain outside of TDH.Errors and Correlates in Parental Recall of Child Immunizations: Effects on Vaccination Coverage Estimates.
    Ped 1997; 99(5): 1-5.
  6. Simpson D, Suarez L.
    The Immunization Status of Texas Children Aged 3 to 24 Months: Results of the 1994 Texas Immunization Survey.
    TX Med. 1996; 92(3): 60-65.

Last updated December 14, 2010