Dena Singer

Reasons For First Teen Pregnancies Predict the Rate of Subsequent Teen Conceptions

Objective. To identify reasons for inconsistent contraceptive use that antedate conception and continue to predispose participants in adolescent-oriented maternity programs to unsafe sexual practices after delivery. We hypothesized that teens who attributed their failure to use contraceptives before their first conception exclusively to concerns about their side effects and/or their own lack of motivation to prevent conception would report less consistent contraceptive use and more repeat conceptions than would teens who attributed their previous failure to use contraceptives to their lack of capacity to do so. Method. We conducted a 2-year, prospective, longitudinal study of contraceptive use and repeat conceptions in a racially/ethnically diverse population of poor 13- to 18-year-olds. The 198 study participants were enrolled consecutively during their first pregnancies from an adolescent-oriented maternity program. Results. The majority (84%) of the teens attributed their failure to use contraceptives before their first pregnancy partially to a lack of capacity to do so. As hypothesized, these teen mothers were significantly more likely to use hormonal contraceptives (85% vs 62%), (particularly Norplant, 47% vs 19%) and less likely to conceive again (13% vs 41%). Most teens attributed their inconsistent contraceptive use during the postpartum study period to three factors: side effects, plans to abstain from sexual intercourse, and their lack of motivation to postpone additional childbearing. Conclusions. The reasons teen mothers give for not using contraceptives consistently before their first pregnancies predict the occurrence of subsequent conceptions during adolescence. Those who attribute their previous failure to use contraceptives consistently to side-effect concerns and their own lack of motivation to postpone childbearing are least likely to use hormonal contraceptives after delivery and most likely to conceive again. Our findings suggest that future research should focus on the development of more effective interventions for preventing repeat conceptions among adolescent mothers who had the capacity to prevent their first pregnancies.

THE EFFECT OF MONETARY INCENTIVES AND PEER SUPPORT GROUPS ON REPEAT ADOLESCENT PREGNANCIES : A RANDOMIZED TRIAL OF THE DOLLAR-A-DAY PROGRAM

OBJECTIVES To test the hypotheses that (1) a monetary incentive promotes peer-support group participation; and (2) peer-support group participation decreases repeat adolescent pregnancies. DESIGN Two-year, prospective, randomized controlled trial. SETTING Denver, Colo. PARTICIPANTS A total of 286 primiparous girls younger than 18 years, whose infants were younger than 5 months. INTERVENTION Participants were randomized to 4 interventions: monetary incentive and peer-support group, peer-support group only, monetary incentive only, or no intervention. MAIN OUTCOME MEASURES Consistency of participation in planned intervention and repeat pregnancy. RESULTS Participation in interventions was generally low. Hypothesis 1 was supported: 58% of those offered a monetary incentive participated in the peer-support groups, compared with 9% of those who were not offered the incentive. Hypothesis 2 was rejected: the peer-support group experience failed to prevent repeat pregnancies. The incidence of second pregnancies at 6 months (9%, 22/248), at 12 months (20%, 49/248), at 18 months (29%, 72/248), and at 24 months (39%, 97/248) following delivery did not vary significantly in relation to intervention strategy. Background sociodemographic characteristics significantly affected the timing of subsequent conceptions but not intervention participation. CONCLUSION A monetary incentive draws adolescent mothers to sites where they can discuss the costs and benefits of contraception and conception with knowledgeable adults and supportive peers. These discussions do not prevent repeat pregnancies. Further studies are needed to determine if an intervention that produces substantive changes in the daily living environment will eliminate the sexual practices that are responsible for the high rate of repeat pregnancy in this population.