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Published on: January 12, 2018
The risk for infant mortality among adolescent childbearing groups
Maureen G Phipps1, Maryfran Sowers, Sonya M DeMonner
1Brown Medical School, Women & Infant Hospital of Rhode Island, Department of Obstetrics and Gynecology, Providence, Rhode Island 02905-2401, USA. mphipps@wihri.org
Insights
Infant mortality is significantly higher for mothers 15 years old and younger. Not reporting the father on the birth certificate is a potential risk marker for infant mortality.
Area of Science:
- Reproductive Health
- Perinatal Epidemiology
- Public Health
Background:
- Adolescent childbearing presents unique challenges.
- Infant mortality rates vary significantly across different adolescent age groups.
Purpose of the Study:
- To evaluate risk disparities for infant mortality among adolescent childbearing age groups.
- To identify risk factors associated with infant mortality in adolescent mothers.
Main Methods:
- Analysis of 1995-1996 U.S. birth cohorts (777,762 singleton, first births).
- Inclusion of 4,631 infant deaths linked to mothers aged 12-19 years.
- Utilized bivariate comparisons and multivariable logistic regression.
Main Results:
- Infant mortality rates were highest for mothers <=15 years old (8.1/1000) compared to 16-17 (6.3/1000) and 18-19 (5.4/1000).
- Mothers <=15 years old had 1.6 times greater risk of infant mortality, even after adjusting for known risk factors.
- Unreported fathers on birth certificates were associated with a 24% increased infant mortality risk.
Conclusions:
- Childbearing at <=15 years old is linked to substantially increased infant mortality risk.
- Not reporting the father on birth certificates may serve as a risk marker.
- Tailored interventions are needed, considering age-specific risks in adolescent mothers.
Objective:
To evaluate risk disparities and risk factors for infant mortality among adolescent childbearing age groups.
Methods:
We combined the 1995 and 1996 comprehensive U.S. birth cohorts provided by the National Center for Heath Statistics. Our analysis included 777,762 singleton, first births to women aged 12-19 years linked to 4631 infant deaths. We used both bivariate comparisons and multivariable logistic regression for our analysis, with infant mortality as our main outcome measure.
Results:
Rates of infant mortality are substantially higher for < or =15-year-olds (8.1/1000 live births) compared with 16-17-year-olds (6.3/1000 live births) and 18-19-year-olds (5.4/1000 live births). Even after adjusting for risk factors associated with poor outcomes, including alcohol use, tobacco use, and prenatal care use, the risk for infant mortality was 1.6 (95% confidence interval [95% CI] 1.4, 1.7) times greater for infants of mothers < or =15 years old as compared with those mothers 18-19 years old. In the < or =15-year-old group, 62% of fathers were not reported on the child's birth certificate. Not reporting the father was associated with a 24% increased risk for infant mortality after adjusting for maternal and infant risk factors.
Conclusions:
Childbearing in < or =15-year-olds is associated with a substantial increased risk for infant mortality compared with childbearing in older adolescence. This study suggests that not reporting the father on a birth certificate is a potential risk marker. Risk differences among adolescent age groups may be important to consider when creating tailored intervention and prevention strategies.
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