Collaborative Ambulatory Research Network (CARN)

Much of the clinical research that has resulted in standards and guidelines for perinatal health care has been oriented toward hospital-based, rather than ambulatory care settings.

The CARN is comprised of a group of practicing ACOG Fellows who voluntarily participate in survey research on ambulatory care issues affecting Fellows of The American College of Obstetricians and Gynecologists (ACOG) and their patients. Information from these studies is used to develop better informed educational strategies, and to disseminate information to physicians in those areas in which a knowledge deficit is apparent.  Additionally, we submit the findings of each survey study, in article form, to a peer-review journal for publication.

Funding is provided by the cooperative agreement grant, HRSA-15-090, through the U.S. Department of Health and Human Services, Health Resources and Services Administration, Maternal and Child Health Research Network on Pregnancy-Related Care Program.

Electronic and mailed questionnaire survey studies cover a variety of topics pertaining to perinatal health care. Our goals include examining and describing existing obstetrician/gynecologist knowledge, practices, and educational needs. CARN surveys generate a base of normative data on various issues. In addition to papers derived from questionnaire survey data, we also publish review papers and other articles. CARN surveys are conducted in collaboration with experts from various disciplines, including clinical medicine, academic medicine, mental health, public health, the decision sciences and basic laboratory-based science research.

Over 140 studies have been completed from 1997 to 2015 on topics including: depression, anxiety, obesity, hormone therapy, fetal alcohol syndrome, spina bifida, post term pregnancy, food borne diseases (such as Listeriosis and Toxoplasma gondii), cystic fibrosis, thyroid disorder, cesarean delivery, multiple pregnancy, diabetes, hepatitis C virus, HIV, interactions with the pharmaceutical industry, and professional practice topics (such as liability, workload, continuing professional development, duty hours).

If you are interested in becoming a CARN member, please email Neko Castleberry ( with the following information: your name, address, and email address.


Michael Power, PhD

Carrie Snead, MA

Neko Castleberry, MPP


American College of Obstetricians and Gynecologists
409 12th Street SW, Washington, DC  20024-2188 | Mailing Address: PO Box 70620, Washington, DC 20024-9998