Tuesday, October 21, 2014

Safety First

OK, folks, raise your hands. Who's in favor of teenage pregnancy? How about teenage abortion? Childbirth?

Although the rate is declining, each year 600,000 American teenagers become pregnant; 30% will become pregnant at least once before the age of 20. According to the National Campaign to Prevent Teen and Unplanned Pregnancy, in 2010, births by teenage mothers cost the country $9.4 billion in health care, public assistance and lost income due to reduced educational attainment, to say nothing of the long-term public health and social costs to teenage mothers and their children.

Dr. Gina Secura and her colleagues at the Contraceptive CHOICE Project in St. Louis have published a case study of the effects of offering free long-term contraceptives to teenage girls. The participants were 1404 adolescents between 14 and 19 who were enrolled in the program between 2007 and 2011. They were recruited via referral from clinics, community flyers and word of mouth. To participate in the study, they had to be sexually active or say they were planning to be, and not want to become pregnant.

All participants received a standard counseling session in which the risks and benefits of alternative contraceptive methods were reviewed and questions answered. After making a choice, participants were provided with their chosen contraceptive option free of charge. Followup interviews were conducted by telephone at three months, six months and every six months thereafter for the next two or three years (depending on when they enrolled). They received a $10 gift card for each completed survey. The one, two and three year followup rates were 92%, 82% and 75%. Rates of pregnancy, birth and abortion were compared both to their age cohort in the general population and their sexually active age cohort (since enrollment was limited to those who were or planned to be sexually active). Here are the data, reported as the number of pregnancies, births and abortions per 1000 in the population.

CHOICE Project
U. S. Population
Sexually Active Teens
Pregnancy
34.0
57.4
158.5
Birth
19.4
34.4
94.0
Abortion
9.7
14.7
41.5

Comparing the CHOICE participants to sexually active teens in the general population—the more appropriate comparison group—shows that they became pregnant and gave birth at 21% the national average, and had abortions at 23% the national rate. The CHOICE Project reduced unwanted pregnancy more for older (18-19) than younger (14-17) girls, and more for African-American than White participants.

The project was effective primarily because the majority of participants—68.4% of the older and 77.5% of the younger girls—chose long-acting reversible contraceptive (LARC) methods, either the hormonal or non-hormonal IUD or the etonogestral implant, rather than birth control pills, rings, patches or injections. These methods don't require participants to remember to reuse them and have a close to zero failure rate. But fewer than 5% of teenagers in the general population use LARCs. The researchers report that most of their participants had never even heard of them.

The study doesn't separate the effects of counseling, the contraceptive method, or the fact that the contraceptives were free, and it's likely that all these factors played a role. Other limitations of the study include its less than 100% response rate, its reliance on self-report data about pregnancies, the possibility that the followups reminded some participants to use their contraceptives, and the requirement of parental consent for the 14 to 17-year-olds, who may have been at lower risk of pregnancy than those whose parents did not consent. These drawbacks may be balanced by the high percentage of African-American (60%) and poor teenagers in the CHOICE Project, who are at greater risk of unintended pregnancy than the general population.

Rarely do we have a chance to report a study that is so effective in solving an important social problem, and that provides such a vivid reminder of the superiority of prevention over remediation. The cost of these birth control methods varied, with the LARCs being more expensive—$400 to $1000 depending on the method and the individual. To this must be added the costs of recruitment, counseling and followup. All of this is a pittance compared to the medical and social costs of unwanted pregnancy. We have the technology; what we lack is the political will.

In theory, the Affordable Care Act requires insurance companies to cover all forms of contraception with no co-pay, but there is no reason for insurance companies to publicize this option.  And there are other problems:
  • Doctors probably don't follow as good a script as the CHOICE Project counselors, and are not as aggressive in recruitment and followup. In general, doctors get paid less for time spent talking to patients than other activities.
  • Teenagers, who are usually covered by their parents' insurance, may not seek contraceptives because the visit will show up on their parents' statements.
  • According to the National Health Interview Survey, 18.4% of Americans aged 18-64 were uninsured during the first three months of 2014. Girls from uninsured families are probably at greater risk of unwanted pregnancy than those whose families are insured.
The Secura study argues strongly for a single-payer health care system, not only to guarantee that everyone is covered, but also because government can prescribe a uniform set of procedures to be followed by doctors when discussing birth control with teenagers.

Newspaper articles about the Secura study mention anticipated resistance from conservatives who believe that providing teenagers with contraceptives encourages sexual activity. But these articles fail to mention that research doesn't support the claim that education about contraceptives encourages teenagers to have sex. (That would be rude.) In fact, the reverse is true. Comprehensive sex education is associated with delayed or reduced sexual activity.

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