DOI: 10.6077/ccac-dr43
title: National Health Interview Survey, 1998

description: &lt;p&gt;The purpose of the National Health Interview Survey (NHIS) is to obtain information about the amount and distribution of illness, its effects in terms of disability and chronic impairments, and the kinds of health services people receive. Implementation of a redesigned NHIS (ICPSR 2954), consisting of a basic module, a periodic module, and a topical module, began in 1997. The present collection consists of the basic module and topical modules on prevention, which contain pregnancy and smoking components along with information on prevention of illness and injury for adults and children. Each record in the Household-Level File (Part 1) of the basic module contains data on the type of living quarters, number of families in the household responding and not responding, and the month and year of the interview for each eligible sampling unit. The Family-Level File (Part 2) is made up of reconstructed variables from the person-level data of the basic module and includes information on sex, age, race, marital status, Hispanic origin, education, veteran status, family income, family size, major activities, health status, activity limits, and employment status, along with industry and occupation. As part of the basic module, the Person-Level File (Part 3) provides information on all family members with respect to health status, limitation of daily activities, cognitive impairment, and health conditions. Also included are data on years at current residence, region variables, height, weight, bed days, doctor visits, hospital stays, and health care access and utilization. A randomly-selected adult in each family was interviewed for the Sample Adult File (Part 4) regarding respiratory conditions, renal conditions, AIDS, joint symptoms, health status, limitation of daily activities, and behaviors such as smoking, alcohol consumption, and physical activity. The Sample Child File (Part 5) provides information from a knowledgeable adult in the household on medical conditions of one child in the household, such as respiratory problems, seizures, allergies, and use of special equipment such as hearing aids, braces, or wheelchairs. Also included are questions regarding child behavior and the use of mental health services. The Child Immunization File (Part 6) presents information from shot records and supplies vaccination status, along with the number and dates of shots, and information about the chicken pox vaccine. Episode-based information is found in the Injury Episode File (Part 7), while information in the Injury Verbatim File (Part 8) is comprised of narrative text describing injuries, including type of injury, how the injury occurred, and the body part injured. The Poison Episode File (Part 9) examines the cause and date of injury or poisoning, loss of time from work or school, and whether the poisoning resulted in hospitalization. The prevention modules are being examined to determine the &quot;Healthy People Objectives for 2010,&quot; which have the aim of reducing or preventing illness and disease among Americans. The Pregnancy and Smoking Prevention Module (Part 10) contains a record for every woman 18-49 years of age and provides information on tobacco use and smoking during pregnancy. The Sample Adult Prevention Module (Part 11) examines injury prevention, environmental health issues, tobacco use, nutrition, workplace health promotion, heart disease, stroke, chronic diseases, clinical services used, preventive services used, cancer, oral health, physical activity, mental health, family discussions, and firearm safety. The Sample Child Prevention Module (Part 12) provides information on health conditions, dental care, and injury prevention, along with use of seat belts and safety equipment during participation in sports. (Source: downloaded from ICPSR 7/13/10)&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Please Note:&lt;/strong&gt; This dataset is part of the historical CISER Data Archive Collection and is also available at ICPSR -- &lt;a href="https://doi.org/10.3886/ICPSR03107.v2"&gt;https://doi.org/10.3886/ICPSR03107.v2&lt;/a&gt;. We highly recommend using the ICPSR version as they made this dataset available in multiple data formats.&lt;/p&gt;
description: National Health Interview Survey, [Core Data]
description: collection_notes: The data collected in the NHIS are obtained through a complex sample design involving stratification, clustering, and multistage sampling. Because of this complex design and adjusted sampling weights, the direct application of standard statistical analysis methods for estimation and hypothesis testing may yield misleading results. If data are not weighted, severely biased estimators may result. For this reason, it is necessary to use the weights that are included in the accompanying data file for analyses.