National Health Interview Survey, 1997

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, consisting of a basic module, a periodic module, and
a topical module, began with the 1997 data collection. The present
collection consists of the basic module only, plus additional
household data. The basic module corresponds to the former NHIS core
questionnaire and is made up of the family core, the sample adult
core, and the sample child core questions. Each record in the
Household-Level File (Part 1) contains information 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. Episode-based information is found in the Injury Episode
File (Part 4), while the Poison Episode File (Part 5) examines the
cause and date of injury or poisoning, loss of time from work or
school, and whether the poisoning resulted in
hospitalization. Information in the Injury Verbatim File (Part 6) is
comprised of narrative text describing injuries, including type of
injury, how the injury occurred, and the body part injured. A
randomly-selected adult in each family was interviewed for the Sample
Adult File (Part 7) regarding respiratory conditions, renal
conditions, AIDS, and joint symptoms, along with questions regarding
health status, limitation of daily activities, and behaviors such as
smoking, alcohol consumption, and physical activity. The Sample Child
File (Part 8) 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 9) presents information
from shot records and supplies vaccination status, along with the
number and dates of shots, and information about chicken pox
vaccines.

国家健康访谈调查（National Health Interview Survey, NHIS）的设立目的，是获取有关疾病的规模与分布、疾病所导致的残疾与慢性损伤效应，以及民众所接受的各类医疗服务类型的相关信息。自1997年数据采集工作起，包含基础模块、周期模块与专题模块的改版NHIS正式实施。当前的采集工作仅包含基础模块，辅以额外的家庭层面数据。基础模块对应原NHIS核心问卷，由家庭核心问卷、样本成人核心问卷与样本儿童核心问卷组成。家庭层级文件（Household-Level File, 第1部分）中的每条记录，均包含受访家庭与未受访家庭的居住类型、家庭数量，以及每个符合抽样条件的单位的访谈月份与年份信息。家庭层级文件（Family-Level File, 第2部分）由基础模块个人层面数据重构得到的变量组成，涵盖性别、年龄、种族、婚姻状况、西班牙裔血统、教育程度、退伍军人身份、家庭收入、家庭规模、主要活动、健康状况、活动受限情况与就业状态，同时包含行业与职业信息。作为基础模块的组成部分，个人层级文件（Person-Level File, 第3部分）提供了所有家庭成员的健康状况、日常活动受限情况、认知障碍与健康病症相关信息。此外还包含在当前居住地的居住年限、区域变量、身高、体重、卧床天数、就诊次数、住院时长，以及医疗服务可及性与利用情况相关数据。基于事件的相关信息收录于损伤事件文件（Injury Episode File, 第4部分），而中毒事件文件（Poison Episode File, 第5部分）则涵盖损伤或中毒的诱因与日期、误工/缺课时长，以及中毒是否导致住院等信息。损伤原始记录文件（Injury Verbatim File, 第6部分）收录的信息为描述损伤的叙述性文本，包括损伤类型、损伤发生原因与受损身体部位。每个家庭中随机抽取的一名成人需接受样本成人文件（Sample Adult File, 第7部分）相关访谈，内容涵盖呼吸系统疾病、肾脏疾病、艾滋病与关节症状相关问题，同时包含健康状况、日常活动受限情况，以及吸烟、饮酒与体育锻炼等行为相关问题。样本儿童文件（Sample Child File, 第8部分）由家庭中知情成人提供有关家中一名儿童的医疗状况信息，包括呼吸系统疾病、癫痫、过敏，以及助听器、矫形器或轮椅等特殊设备的使用情况。此外还包含儿童行为与心理健康服务使用相关的问题。儿童免疫接种文件（Child Immunization File, 第9部分）提供了来自疫苗接种记录的信息，包含疫苗接种状态、疫苗接种剂次与接种日期，以及水痘疫苗相关信息。