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National Immunization Survey (NIS), 2001 (ICPSR 3831)
Principal Investigator(s): United States Department of Health and Human Services. National Center for Health Statistics; Centers for Disease Control and Prevention
This survey is part of a series that was designed to track the rates of proper vaccination of children in the United States. The target age range for the children was 19 to 35 months. Respondents were queried on the number of children present in the household between the ages of 12 months and 3 years, their dates of birth, their sex, whether there were vaccination records for the children, whether those records were accessible, whether the respondent was the adult in the household most knowledgeable about the vaccinations, and whether the respondent accompanied the children to more than 50 percent of their vaccinations. For each child in the household, information was gathered on whether each child had received all of the recommended vaccinations, and the number of the diphtheria-tetanus-pertussis shots (DTP or DT), polio vaccinations, measles vaccinations, meningitis or Haemophilus Influenzae type B (HIB) shots, varicella (chicken pox) vaccinations, rotavirus shots, pneumococcal shots, and hepatitis B (Hep B) shots each child had received. Further information was obtained about additional vaccinations the child may have received to combat diseases such as tuberculosis, typhoid, yellow fever, and malaria, the child's health care providers, the number of doctors that had performed vaccinations, and whether the measles vaccination was strictly for measles or for the measles-mumps-rubella (MMR) combination. Additional information was gathered regarding whether the child received benefits from the nutrition and health program for Woman, Infants, and Children (WIC), what age the child began receiving WIC benefits, whether the child's vaccination records were checked at the WIC certification visit, and whether these benefits had ever been interrupted for six months or more. Once parental consent was obtained, health care providers were queried on the vaccination records for each child whose vaccination information was gathered from parents. Health care providers were queried on the type and the level of detail of the vaccination records for each child, the dates and types of vaccinations administered, the date of each child's first visit to that provider regardless of reason, the date of the child's most recent visit to that provider regardless of reason, and the type of care the provider gave to the child. Health care provider respondents were asked to describe their facility, to give their position within the facility, the child's date of birth, according to their records, and whether the child was known by another last name, and to provide a list of any additional health care providers for that child. Demographic information provided by the parents or guardians includes the number of people living in the household, the number of people over and under 18 in the household, respectively, the number of children under the age of 12 months, ethnicity of respondent and child, marital status of the respondent, respondent's relationship to the child, respondent's educational level or that of the child's mother, the date of birth of the child's mother, household income, and whether the child was living at the same address as when he or she was born.
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U. S. Dept. of Health and Human Services, National Center for Health Statistics, and Centers for Disease Control and Prevention. NATIONAL IMMUNIZATION SURVEY (NIS), 2001. ICPSR version. Hyattsville, MD: Centers for Disease Control and Prevention [producer], 2002. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2004. http://doi.org/10.3886/ICPSR03831.v1
Persistent URL: http://doi.org/10.3886/ICPSR03831.v1
Scope of Study
Geographic Coverage: United States
Date of Collection:
Universe: The target population for the National Immunization Survey is children aged 19 to 35 months living in the United States at the time of the interview.
Data Types: survey data
Data Collection Notes:
(1) Any published material derived from these data should acknowledge the Centers for Disease Control (CDC), National Center for Health Statistics (NCHS), and the National Immunization Program (NIP) as the original data source and use "NIS" in the title or as a keyword in the abstract. (2) Per agreement with NCHS, ICPSR distributes the data file and technical documentation in this collection in their original form as prepared by NCHS. (3) The codebook is provided by ICPSR as a Portable Document Format (PDF) file. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided on the ICPSR Web site.
Sample: The National Immunization Survey uses a random-digit-dialing (RDD) telephone survey to identify households containing children in the target age range and interview an adult who is knowledgeable about the child's vaccinations. With the consent of the child's parent or guardian, the National Immunization Survey also contacts (by mail) the child's health care providers to request information on vaccinations from the child's medical records. Samples of telephone numbers are drawn independently, for each calendar quarter, within 78 Immunization Action Plan (IAP) areas. Of the 78 IAP areas, 28 (including the District of Columbia) are urban areas. The remaining 50 are either an entire state or a "rest of state" IAP area (where the state contains one or more urban IAP areas). The target sample size in each IAP area is designed to achieve an approximately equal number of children with completed telephone interviews in all 78 IAP areas.
telephone interviews and mailback questionnaires
Restrictions: In preparing the data file(s) for this collection, the National Center for Health Statistics (NCHS) has removed direct identifiers and characteristics that might lead to identification of data subjects. As an additional precaution, NCHS requires, under Section 308(d) of the Public Health Service Act (42 U.S.C. 242m), that data collected by NCHS not be used for any purpose other than statistical analysis and reporting. NCHS further requires that analysts not use the data to learn the identity of any persons or establishments and that the director of NCHS be notified if any identities are inadvertently discovered. ICPSR member institutions and other users ordering data from ICPSR are expected to adhere to these restrictions.
Original ICPSR Release: 2004-04-21
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