Can Intervention Programs Prevent Subsequent Births?
Reactions to Reviews of Recent Research
Lorraine V. Klerman, Dr.P.H.
Department of Maternal and
Child Health
School of Public Health
University of Alabama at Birmingham
Prepared for program on Preventing
Second Births to Teenage Mothers: Demonstration Findings,
sponsored by the American Enterprise Institute for Public
Policy Research on March 6, 1998, 1 to 4 pm, Washington, DC.
Preparation of this talk was made
possible, in part, by a grant from the federal Maternal and
Child Health Bureau (MCJ 9040).
The prevention of second and higher order births to very
young women, unmarried women, and women who have not yet
finished their high school education is of great interest to
public health and particularly to those in maternal and child
health. Research has shown that such births are associated
with physical and mental health problems for the mother and
the child, and often for other family members. Moreover, we
in public health do not think that reliance on welfare is
good for most families. Welfare provides too little money and
is destructive of self-esteem. So we encourage attempts to
reduce welfare rolls as long as such efforts do not lead to
living conditions that imperil health, such as hunger,
inadequate clothing or housing, or the inability to obtain
medical care.
PUBLIC HEALTH PERSPECTIVE
What public health practitioners are most eager to see
research undercover are ways to reduce first pregnancies
among teenagers, especially those under age 19. But that is
not the subject of today's meeting. Rather we are trying to
understand why a teenager who has experienced the
difficulties of raising a child, often under conditions of
poverty and usually without a male partner, would allow
herself to become pregnant again, often before the first
child is two years old. Did they want to become pregnant
again so soon? Most say "no." If they did not want
to become pregnant again so quickly, why were they unable to
prevent the pregnancies? The earlier speakers did not address
these questions directly, although they will be addressed by
the speaker who follows me. But an understanding of the
underlying dynamics of teenage subsequent births is not
essential to the development of programs to prevent them.
Public health was able to prevent several diseases before
there was a real understanding of the germ theory. What we in
public health seek are programs that can be implemented in
the communities across the United States that are
experiencing high rates of adolescent pregnancy. These
programs should be able to convince teenage mothers to delay
a subsequent pregnancy until at least two years have past,
they are over 20 years of age, they can support another child
emotionally as well as financially, and, hopefully, they have
married.
DIFFERENCES IN POPULATIONS
Both of the programs described earlier, the home
visitation program in Elmira and Memphis and the Teenage
Demonstration Program in Camden, Chicago, and Newark
attempted to delay subsequent pregnancies--but they served
somewhat different populations and used very different
approaches.
A major difference between the two programs was the type
of enrollment. Women were invited to join the home visitation
program in Elmira and Memphis and most did; but it was not a
requirement for any benefits that they were receiving. But
enrollment was mandatory for all eligible women in the Teen
Demo. If they did not enroll, they were sanctioned by the
loss of a portion of their AFDC grant. Some enrolled only
after threats and some only after being penalized, but most
did eventually enroll.
There were other differences in the two populations. A
larger percentage of the Teen Demo participants were under 20
years of age at enrollment (96%). The home visiting projein
Elmira served largely Caucasian women and in Memphis largely
African-Americans. While over three-quarters of the Teen Demo
participants were African-American, there was a large
Hispanic contingent (16%). The home visiting project only
enrolled women who had no prior births, while many of the
women in the Teen Demo already had one child (89%). The home
visitors contacted their clients while they were pregnant
(before the 30th week of pregnancy), while most of the Teen
Demo participants were already taking care of infants and
toddlers at enrollment. All the women in the Teen Demo were
receiving AFDC payments at the time of enrollment, but not
all the home visiting participants were.
DIFFERENCES IN PROGRAMS
But what is even more striking, and is the focus of our
attention today, is the differences in the programs,
especially as they might influence subsequent pregnancies.
The home visiting program was considered a public health
program, while the Teen Demo was considered a welfare
program. Thus it is not surprising that participants'
principal contact with the home visiting program was through
a nurse, who had received extensive training (3 months) to
prepare her for her role in this program. In the Teen Demo,
the principal contact was a case manager, who also was
specifically trained for this program, but less intensively.
Few of the case managers had prior professional training,
such as nursing or social work; many were paraprofessionals.
Case loads in the Teen Demo program (50-60 clients) were
double those in the home visiting program (20-25 families).
The usual place of contact also differed. For the home
visiting program, it was the home, with phone and other
contacts being secondary. For the Teen Demo, contacts in the
office of the case manager were the norm, although contacts
at the home and in other offices did occur. The home visiting
program stressed the involvement of others in planning for
the mother and child. This included the male partner and the
woman's family and friends. This was not a major element in
the Teen Demo.
The focus of the two programs also differed. The home
visiting program had more of a health focus, although
improving the life course of the mother was also stressed.
The Teen Demo was clearly a program whose objective was to
make women self-sufficient and move them off the welfare
roles. Good health, including family planning, was seen
primarily as a way to accomplish this. The home visiting
program's approach to its program objectives was through
behavior modification, using various techniques including
role modeling to change inappropriate behaviors. The Teen
Demo stressed the transmission of information and used
education as its major technique. Also, there were no
financial incentives or disincentives in the home visiting
program, while in the Teen Demo, those at the New Jersey
sites would not receive additional money if they had another
child because of the family cap provision in that state. And,
at all sites, if women did not participate in the program,
their AFDC grants could be reduced.
In terms of the family planning essential to the
prevention of subsequent pregnancies, the programs again
differed in emphasis and approach. Family planning received
more emphasis in the home visiting program from the beginning
and was always an important focus of the program. While in
the Teen Demo, family planning was not initially a major
focus, but received more attention as the case managers
realized that pregnancies would impede their efforts to move
their clients off the welfare rolls. In the home visiting
program, the nurses' training program and their manual made
it clear that family planning was one of many topics that
nurses were expected to discuss with their clients and they
were to discuss it in the context of planning for the woman's
future and that of her child. Because of their professional
training, the nurses were able to educate and counsel their
clients about the various contraceptives. The family planning
message came from the same individuals who offered messages
about education, child care, and other issues. Again,
possibly because of their clinical background, we suspect
that the nurses were more directive and possibly more
authoritative in their counseling. They probably emphasized
that pregnancies should be delayed and that effective
contraceptive use was the only way to do it. Their values and
their advice were clear.
The situation in the Teen Demo was very different. Family
planning was taught at one of three workshops, which was
supposedly mandatory, but which was not always attended. The
number of hours devoted to this subject varied among the
sites (1.5 in Chicago and 54 in Newark), but the sites that
devoted more hours to this subject found that their clients
did not always complete the workshop! Only in Chicago did the
case managers conduct the family planning workshop. In
Camden, the health department had the responsibility and in
Newark, the Planed Parenthood organization. Case managers at
all sites were trained to provide family planning counseling,
but the extent to which they did it undoubtedly varied.
Moreover, anecdotal evidence suggests that some case managers
gave a mixed message: don't have any more children but
children are wonderful. Because of their lack of professional
qualifications, the case managers may have been less explicit
in their education and less directive in their counseling.
DIFFERENCES IN RESULTS
The results of the two programs were remarkably different.
At the 46 month follow-up in Elmira (white women only), there
were fewer pregnancies and births in the home visited than in
the group that received the usual services. (This reached
statistical significance only for pregnancies among women
who, at enrollment, were unmarried and from low socioeconomic
status families.) At the 15 year follow-up in Elmira, there
were again fewer pregnancies and births in the visited group.
(This reached statistical significance among those women who,
at enrollment, were unmarried and from low socioeconomic
status families.) In Memphis, which only has 24 month
follow-up data available, the results are the similar: fewer
pregnancies and births among the visited. (The differences in
pregnancies reached statistical significance for all, but the
births reached statistical significance only for those with
high levels of psychological resources.)
Only in one site, Camden, was the Teen Demo able to report
fewer pregnancies in the case managed women as compared to
the those who received the usual services. (This difference
was statistically significant.) In the other two sites,
pregnancies were actually higher among the case managed
women. Births were higher among the case managed women at all
sites.
For the home visiting programs, data on delay of second
pregnancy are also available and they show a longer interval
between the first and the second birth among the home visited
in Elmira at both the 46 month and 15 year follow-ups. (This
only reached statistical significance in the 15 year
follow-up.)
(It should be noted that the Teen Demo program studied
over 3,000 clients, in comparison to approximately 400 in
Elmira and over a thousand in Memphis. It is likely that if
the differences found in the Elmira and Memphis studies were
replicated in larger groups, these differences would be
significant.)
REASONS FOR DIFFERENCES
I would like to say that the reasons why the home visiting
program had a greater positive impact that the Teen Demo was
entirely due to the differences between the two programs. But
if I did, I would lose my standing as a health services
researcher.
But the populations served by these two programs while
similar, but far from identical. The racial/ethnic mix
differed in a way that might have favored the home visiting
program. The home visiting programs included more women who
were not teenagers, which might have favored that program.
The percentage of really poor was higher in the Teen Demo
program. I suspect that the percentage of women with IQs
below 90 was higher in the Teen Demo program. But remarkably,
the home visiting program showed its greatest impact on those
who were most deprived, those who were unmarried and from low
socioeconomic status families.
But these differences in the populations served do not
seem sufficient to account for the remarkable differences
between the home visiting program in Elmira and Memphis and
the Teen Demo in the three sites. Part, if not most, of the
differences in results are probably due to the differences in
the approach of the two programs. This theory is buttressed
by two findings: first, the lower rate of pregnancies and of
births in the home visited group, as compared to the group
with usual services, is most pronounced among the most
disadvantaged in the home visiting program; and, second,
program administrators felt that the lower rate of
pregnancies at the Camden Teen Demo, as compared to the usual
services group, was due the case managers carrying smaller
caseloads and being more aggressive and doing more to engage
their clients than did the case managers at the other two
Teen Demo sites.
It seems likely that the greater success of the home
visiting program is due to the overall program approach, as
well as to the family planning component in particular. In
terms of the overall approach, the use of a nurse and the
focus on the home and on social supports probably are
elements that should be replicated. The fact that the women
in the home visiting program were first contacted before
birth and had no prior births might also have favored that
program. In terms of family planning, the integration of
family planning into an overall plan for the woman's future
and the lack of separation between the teaching of family
planning and the teaching of other skills seems important.
And the same person taught it all. The lack of effectiveness
of the workshop approach to changing behavior in relationship
to family planning was shown in Newark, which offered the
most hours of family planning education, but where those
participating in the program had more pregnancies than those
who did not. The possibly more directive approach of the
nurse is probably another plus, when dealing with teenagers
especially.
On t