Why do we need a survey on adolescent health? Aren't adolescents generally healthy? It's
true that young people make fewer doctor's visits than do people in other age groups. But a 1991
Office of Technology Assessment report noted "...perhaps one out of five of today's 31 million
adolescents have at least one serious health problem." Furthermore, behaviors that don't appear
to have any immediate effects--like tobacco use--can have far reaching effects in later years, such
as the development of cancer or heart disease.
Haven't surveys of adolescent health already been conducted? Why do we need another
one? Unlike other national studies of adolescent health and behavior, Add Health is uniquely
designed to measure the determinants of health. The main premise is that social context--such as
relationships with families, friends, and peers and community characteristics--influences the
health and health-related behaviors of young people. One of the hallmarks of the study is the
independent measurement of such contextual influences on adolescent health through surveys of
school administrators, students, and parents, and through collection of data on community-level
How were the adolescents chosen to participate in this survey? The National Opinion
Research Center (NORC) at the University of Chicago used statistical techniques to select a
random sample of 7th to 12th grade students from schools across the country. In this way, about
90,000 young people participated by filling out a brief questionnaire at school. Next, in-depth,
at-home interviews were conducted with students and their parents. The students were
inteviewed again in their homes one year later.
What part did parents play in the completion of this study? First, parents were informed
about the school survey and their permission was obtained using procedures approved by each
school before their children could participate. Before any home interview was conducted, signed
consent was obtained from both the parent and the young person. Second, one parent of each
young person interviewed was also interviewed. This is because parents are often better sources
of information on certain details of their children's health than their children are. For example,
most parents know more about their children's health insurance than do their children. Parents
can also provide important information about their own health practices and behaviors that may
have an impact on their children's health practices and behaviors.
Who was interviewed and which schools did they attend? To encourage prospective study
volunteers to answer all questions honestly, they were assured that all their responses would be
kept confidential. For this reason, their identities, and the identities of their schools and
communities, will never be released.
What kinds of questions were the young people asked about their health? Survey questions
sought information on height and weight, depression, self-ratings of health, use of health
services, hospitalizations, days lost from school because of illness, emergency room visits,
injuries, and physical disabilities.
What kinds of behavior questions were asked in the survey? Add Health asked about
substance abuse (alcohol, tobacco, and illicit drugs), violence, prevention of HIV and other
sexually transmitted diseases, sexual behavior, contraceptive use, dietary habits, exercise, seat
belt and helmet use, and sun exposure.
Who will analyze all of the data that has been collected? The data are being made available
to researchers all over the world to use for scientific studies and policy analysis about adolescent
behavior. These studies will supplement those conducted by the scientists who who were
originally funded to collect the data. Analyzing the large volume of information obtained will
occupy researchers for the next decade and beyond.
If anyone can obtain the data, will the respondents' privacy be protected? Before the
material is released for analysis, information that makes it possible to identify the study
respondents will be removed. In fact, not even the principal investigators will be able to tell who
provided the answers to the survey questions.
The Adolescent Health Study
Response Statement: JAMA article on the Adolescent Health Study