Document Detail

Misclassification bias and the estimated effect of parental involvement laws on adolescents' reproductive outcomes.
MedLine Citation:
PMID:  18309128     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: We evaluated the presence of misclassification bias in the estimated effect of parental involvement laws on minors' reproductive outcomes when subjection to such laws was measured by age at the time of pregnancy resolution.
METHODS: Using data from abortion and birth certificates, we evaluated the effect of Texas's parental notification law on the abortion, birth, and pregnancy rates of adolescents aged 17 years compared with those aged 18 years on the basis of age at the time of pregnancy resolution and age at conception.
RESULTS: On the basis of age at the time of the abortion or birth, the law was associated with a fall of 26%, 7%, and 11% in the abortion, birth, and pregnancy rates, respectively, of 17- relative to 18-year-olds. Based on age at the time of conception, the abortion rate fell 15%, the birth rate rose 2%, and the pregnancy rate remained unchanged.
CONCLUSIONS: Previous studies of parental involvement laws should be interpreted with caution because their methodological limitations have resulted in an overestimation of the fall in abortions and underestimation of the rise in births, possibly leading to the erroneous conclusion that pregnancies decline in response to such laws.
Silvie Colman; Ted Joyce; Robert Kaestner
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2008-02-28
Journal Detail:
Title:  American journal of public health     Volume:  98     ISSN:  1541-0048     ISO Abbreviation:  Am J Public Health     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-11     Completed Date:  2008-09-26     Revised Date:  2013-06-05    
Medline Journal Info:
Nlm Unique ID:  1254074     Medline TA:  Am J Public Health     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1881-5     Citation Subset:  AIM; IM    
The Graduate Center, City University of New York, NBER, 365 5th Ave, 5th Floor, New York, NY 10016, USA.
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MeSH Terms
Abortion, Legal* / legislation & jurisprudence,  statistics & numerical data
Bias (Epidemiology)
Birth Certificates
Birth Rate* / trends
Child, Unwanted / legislation & jurisprudence,  statistics & numerical data
Confounding Factors (Epidemiology)
Data Collection
Data Interpretation, Statistical*
Gestational Age
Maternal Age
Minors* / legislation & jurisprudence,  statistics & numerical data
Parental Consent / legislation & jurisprudence
Parental Notification / legislation & jurisprudence*
Pregnancy Outcome / epidemiology
Pregnancy in Adolescence / prevention & control,  statistics & numerical data*
Pregnancy, Unwanted
Research Design
Texas / epidemiology
Grant Support
1 R03 HD49359-01/HD/NICHD NIH HHS

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