Corresponding Author: Rachel K. Jones, PhD,
The Alan Guttmacher Institute, 120 Wall St, New York, NY 10005 (rjones@guttmacher.org).
Author Contributions: Dr Jones had full access
to all of the data in the study and takes responsibility for the integrity
of the data and the accuracy of the data analysis.
Study concept and design: Jones, Singh, Finer.
Acquisition of data: Jones, Purcell.
Analysis and interpretation of data: Jones,
Purcell, Singh, Finer.
Drafting of the manuscript: Jones.
Critical revision of the manuscript for important
intellectual content: Jones, Purcell, Singh, Finer.
Statistical analysis: Jones, Purcell, Finer.
Obtained funding: Jones, Singh.
Administrative, technical, or material support:
Purcell, Singh, Finer.
Study supervision: Jones, Singh, Finer.
Funding/Support: This study was supported in
full by grants from the Annie E. Casey Foundation.
Role of the Sponsor: The sponsor did not participate
in the design or conduct of the study; in the collection, analysis, or interpretation
of the data; or in the preparation, review, or approval of the manuscript.
Disclaimer: The opinions expressed in this
article do not necessarily reflect those of the Annie E. Casey Foundation.
Acknowledgment: We would like to thank Jacqueline
E. Darroch, PhD, of the Gates Foundation and Stanley K. Henshaw, PhD, and
Heather Boonstra, both of the Alan Guttmacher Institute, for their contributions
to this research. The assistance of clinic staff in fielding the survey was
indispensable and greatly appreciated.