Abstract
Study Objective
We assessed factors that might affect perinatal outcomes in second pregnancies in
adolescents.
Design, Setting, Participants, Interventions, Main Outcome Measures
This longitudinal retrospective study was carried out on 66 adolescents who experienced
2 deliveries during their adolescence. Data were collected for the first and second
pregnancies. Odds ratios (ORs) and 95% confidence intervals (CIs) for adverse perinatal
outcomes in the second pregnancy were calculated using a logistic regression model
and SPSS software (version 17.0 for Windows; SPSS Inc, Chicago, IL). A P value < .05 was considered to indicate statistical significance.
Results
Body mass index, number of antenatal care visits, weight gain during pregnancy, incidence
of anemia, smoking status, gestational week at delivery, cesarean section rate, and
birth weight were similar between the first and second pregnancies of these adolescents.
Neonatal intensive care unit admission rate, preeclampsia rate, low neonatal birth
weight rate, and 5-minute Apgar scores <7 were significantly higher in the first than
in the second pregnancy (P < .001). Age of 16 years or younger at the time of first pregnancy (OR = 1.5; 95%
CI, 0.9-2.1; P < .01), less than an 18-month interval between births (OR = 1.4; 95% CI, 0.2-1.7;
P < .04), presence of gestational complications in the first pregnancy (OR = 1.9; 95%
CI, 1.0-3.4; P < .01), and the presence of perinatal complications in the first pregnancy (OR = 1.3;
95% CI, 1.0-1.9; P < .01) were found to be significant indicators for adverse neonatal outcomes in second
pregnancies of adolescents.
Conclusion
We found that the second pregnancies of adolescents were associated with fewer adverse
perinatal outcomes than were their first pregnancies. However, some factors regarding
the presence of perinatal complications in the first pregnancy, such as maternal age
of 16 years or younger at the time of the first pregnancy and interval between first
and second pregnancy of less than 18 months, were found to increase the risk of adverse
perinatal outcomes for the second births.
Key Words
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Article info
Publication history
Published online: May 15, 2015
Footnotes
The authors indicate no conflicts of interest.
Identification
Copyright
© 2016 North American Society for Pediatric and Adolescent Gynecology. Published by Elsevier Inc. All rights reserved.
