Linda Sarna, DNSc, is Professor, School of Nursing, University of California, Los Angeles.
Stella Aguinaga Bialous, DrPH, is President, Tobacco Policy International, San Francisco, California.
Hee-Jin Jun, ScD, MPH, is Research Associate, Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, Massachusetts.
Mary Ellen Wewers, PhD, MPH, is Professor and Associate Dean for Research, College of Public Health, The Ohio State University, Columbus.
Mary E. Cooley, PhD, is Nurse Scientist, Dana-Farber Cancer Institute, Phyllis F. Cantor Center, Research in Nursing and Patient Care, Boston, Massachusetts.
Diane Feskanich, ScD, is Assistant Professor and Associate Epidemiologist, Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Accepted for publication July 7, 2008.
This project was supported by a grant from The Robert Wood Johnson Foundation (55769, Sarna) and funding from the National Cancer Institute 1 K07 (CA 92696-02, Cooley). The Nurses' Health Study is supported by Grants CA87979 and CA50385 from the National Institutes of Health.
The authors thank Dr. Bernard A. Rosner, professor of biostatistics at Harvard School of Public Health and the chief statistician for the Nurses' Health Study, for valuable statistical consultation and Dr. Marjorie Wells, project director, School of Nursing, University of California, for her assistance with this project.
Corresponding author: Linda Sarna, DNSc, School of Nursing, University of California, 700 Tiverton Avenue, Box 956918, Los Angeles, CA 90095 (e-mail: [email protected]).
